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Karpov, S. V.
Photochromic reactions in silver nanocomposites with a fractal structure and their comparative characteristics / S. V. Karpov, A. K. Popov, V. V. Slabko // Tech. Phys. - 2003. - Vol. 48, Is. 6. - P. 749-756, DOI 10.1134/1.1583830. - Cited References: 24 . - ISSN 1063-7842

РУБ Physics, Applied
Рубрики:
SMALL-PARTICLE COMPOSITES
   OPTICAL-PROPERTIES
   COLLOIDAL SILVER
   SELECTIVE PHOTOMODIFICATION
   CLUSTERS
   LIGHT
Аннотация: Conditions for a change in the polarization selectivity of dips in the plasmon absorption spectra of fractal silver nanocomposites irradiated by pulsed laser radiation are studied. The energy thresholds of the polarization selectivity are evaluated, and the polarization and spectral threshold characteristics are compared. Mechanisms behind the correlation between the fractal structure of the nanocomposites, on the one hand, and their optical and photochromic properties, on the other hand, are discussed. (C) 2003 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk Stt. Tech. University, Krasnoyarsk 660074, Russian Federation

Доп.точки доступа:
Popov, A. K.; Slabko, V. V.; Слабко, Виталий Васильевич; Карпов, Сергей Васильевич
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Effect of nickel on the magnetic state of dysprosium in Dy1-xNix-Ni bilayer films / I. S. Edelman [et al.] // Phys. Solid State. - 2003. - Vol. 45, Is. 8. - P. 1493-1499, DOI 10.1134/1.1602886. - Cited References: 21. - This work was supported by the Russian Foundation for Basic Research, project nos. 00-02-16098 and 02-02-06734 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
OPTICAL-PROPERTIES
DY
MULTILAYERS
Аннотация: This paper reports on the results of investigations into the temperature and spectral dependences of the magnetic circular dichroism in Dy1-xNix-Ni bilayer films prepared through thermal sputter deposition of components under ultrahigh vacuum. The distribution of the components over the layer thickness is examined by Auger spectroscopy. The nickel content x in Dy1-xNix layers varies from 0.005 to 0.06. It is shown that, in the temperature range 80-300 K, the contribution made to the magnetic circular dichroism by a Dy1-xNix layer in a bilayer film with a nickel content higher than the threshold value is approximately equal to the magnetic circular dichroism observed in an isolated Dy1-xNix film at temperatures below the temperature of the phase transition to a ferromagnetic state (similar to100 K). This phenomenon is explained by magnetic ordering in theDy(1-x)Ni(x) layer of the bilayer film due to the combined effect of two factors, namely, the incorporation of nickel into a dysprosium layer and the presence of a continuous nickel sublayer in the film. (C) 2003 MAIK "Nauka/Interperiodica".

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Публикация на русском языке Влияние Ni на магнитное состояние Dy в двухслойных пленках Dy[1-x]Ni[x]-Ni [Текст] / И. С. Эдельман [и др.] // Физ. тверд. тела. - 2003. - Т. 45 Вып. 8. - С. 1423-1428

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Semicond Phys, Siberian Div, Novosibirsk 630090, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Institute of Semiconductor Physics, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent'eva 13, Novosibirsk 630090, Russian Federation

Доп.точки доступа:
Edelman, I. S.; Эдельман, Ирина Самсоновна; Markov, V. V.; Марков, Владимир Витальевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Khudyakov, A. E.; Zabluda, V. N.; Заблуда, Владимир Николаевич; Kesler, V. G.; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич
}
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Electromagnetic density of states and absorption of radiation by aggregates of nanospheres with multipole interactions / V. A. Markel [et al.] // Phys. Rev. B. - 2004. - Vol. 70, Is. 5. - Ст. 54202, DOI 10.1103/PhysRevB.70.054202. - Cited References: 81 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
DISCRETE-DIPOLE APPROXIMATION
   ENHANCED RAMAN-SCATTERING
   METAL FRACTAL CLUSTERS
   OPTICAL-PROPERTIES
   SELECTIVE PHOTOMODIFICATION
   DISORDERED CLUSTERS
   NUMERICAL-SIMULATION
   SPECTRAL DEPENDENCE
   PARTICULATE MATTER
   LIGHT-SCATTERING
Кл.слова (ненормированные):
carbon -- iron -- palladium -- silver -- article -- dipole -- electromagnetic field -- geometry -- mathematical analysis -- molecular interaction -- nanoparticle -- radiation absorption
Аннотация: We calculate the quasistatic electromagnetic density of states for aggregates of touching spheres, in particular, linear chains and computer-generated random fractal aggregates. Multipole moments with orders of up to L=64 are taken into account for random aggregates with the number of particles of up to N=100 and up to L=8000 for linear chains. Extensive comparisons with the dipole approximation and geometrical cluster renormalization method are performed. Extinction spectra are calculated for several metals and black carbon. Long wavelength electromagnetic properties of fractal aggregates are considered in details.

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Держатели документа:
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Jackson State Univ, Dept Phys, Jackson, MS 39217 USA
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia
Krasnoyarsk State Tech Univ, Dept Phys & Engn, Krasnoyarsk 660028, Russia
Natl Acad Sci Ukraine, Inst Surface Chem, UA-03164 Kiev, Ukraine
ИФ СО РАН
Department of Radiology, University of Pennsylvania, Philadelphia, PA 19104, United States
Department of Physics, Jackson State University, Jackson, MS 39217, United States
L. V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation
Moscow Inst. of Phys. and Technology, Dolgoprudny, Moscow Region 141700, Russian Federation
Dept. of Physics, and Engineering, Krasnoyarsk State Tech. University, Krasnoyarsk 660028, Russian Federation
Institute of Surface Chemistry, Natl. Academy of Sciences of Ukraine, 17 General Naumov St., 03164 Kiev, Ukraine

Доп.точки доступа:
Markel, V. A.; Pustovit, V. N.; Karpov, S. V.; Карпов, Сергей Васильевич; Obuschenko, A. V.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Isaev, I. L.; Исаев, Иван Леонидович
}
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Local anisotropy and giant enhancement of local electromagnetic fields in fractal aggregates of metal nanoparticles / S. V. Karpov [et al.] // Phys. Rev. B. - 2005. - Vol. 72, Is. 20. - Ст. 205425, DOI 10.1103/PhysRevB.72.205425. - Cited References: 56 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
SMALL-PARTICLE COMPOSITES
   DIFFUSION-LIMITED AGGREGATION
   OPTICAL-PROPERTIES
   SELECTIVE PHOTOMODIFICATION
   NUMERICAL-SIMULATION
   DISORDERED CLUSTERS
   ABSORPTION-SPECTRUM
   PARTICULATE MATTER
   NONLINEAR OPTICS
   LIGHT-SCATTERING
Аннотация: We have shown within quasistatic approximation that the giant fluctuations of a local electromagnetic field in random fractal aggregates of silver nanospheres are strongly correlated with a local anisotropy factor S which is defined in this paper. The latter is a purely geometrical parameter which characterizes the deviation of local environment of a given nanosphere in an aggregate from spherical symmetry. Therefore, it is possible to predict the sites with anomalously large local fields in an aggregate without explicitly solving the electromagnetic problem. We have also demonstrated that the average (over nanospheres) value of S does not depend noticeably on the fractal dimension D, except when D approaches the trivial limit D=3. In this case, as one can expect, the average local environment becomes spherically symmetrical and S approaches zero. This corresponds to the well-known fact that in trivial aggregates, fluctuations of local electromagnetic fields are much weaker than in fractal aggregates. Thus, we find that, within the quasistatics, the large-scale geometry does not have a significant impact on local electromagnetic responses in nanoaggregates in a wide range of fractal dimensions. However, this prediction is expected not to be correct in aggregates which are sufficiently large for the intermediate- and radiation-zone interaction of individual nanospheres to become important.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Dept Phys & Engn, Krasnoyarsk 660028, Russia
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
ИФ СО РАН
L. V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation
Department of Physics and Engineering, Krasnoyarsk State Technical University, Krasnoyarsk 660028, Russian Federation
Departments of Radiology and Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, United States

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Isaev, I. L.; Исаев, Иван Леонидович; Markel, V. A.
}
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Spectroscopic studies of fractal aggregates of silver nanospheres undergoing local restructuring / S. V. Karpov [et al.] // J. Chem. Phys. - 2006. - Vol. 125, Is. 11. - Ст. 111101, DOI 10.1063/1.2229202. - Cited References: 30 . - ISSN 0021-9606

РУБ Physics, Atomic, Molecular & Chemical
Рубрики:
ENHANCED RAMAN-SCATTERING
   SMALL-PARTICLE COMPOSITES
   OPTICAL-PROPERTIES
   DISORDERED CLUSTERS
   NONLINEAR OPTICS
   LOCALIZATION
   NANOPARTICLES
   EIGENMODES
   BOUNDS
Кл.слова (ненормированные):
Large-scale fractal geometry -- Nonlinear optical responses -- Restructuring -- Silver nanospheres -- Aggregates -- Colloids -- Electromagnetic fields -- Fractals -- Nonlinear optics -- Sampling -- Spectroscopic analysis -- Silver
Аннотация: We present an experimental spectroscopic study of large random colloidal aggregates of silver nanoparticles undergoing local restructuring. We argue that such well-known phenomena as strong fluctuation of local electromagnetic fields, appearance of "hot spots" and enhancement of nonlinear optical responses depend on the local structure on the scales of several nanosphere diameters, rather than the large-scale fractal geometry of the sample. (c) 2006 American Institute of Physics.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Dept Phys & Engn, Krasnoyarsk 660028, Russia
Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA
Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA
ИФ СО РАН
L. V. Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Krasnoyarsk 660036, Russian Federation
Department of Physics and Engineering, Krasnoyarsk State Technical University, Krasnoyarsk 660028, Russian Federation
Departments of Radiology and Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, United States

Доп.точки доступа:
Karpov, S. V.; Карпов, Сергей Васильевич; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Isaev, I. L.; Исаев, Иван Леонидович; Markel, V. A.
}
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Density-functional theory study of the electronic structure of thin Si/SiO2 quantum nanodots and nanowires / P. V. Avramov [et al.] // Phys. Rev. B. - 2007. - Vol. 75, Is. 20. - Ст. 205427, DOI 10.1103/PhysRevB.75.205427. - Cited References: 63 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
ERBIUM ION LUMINESCENCE
   TOTAL-ENERGY CALCULATIONS
   WAVE BASIS-SET
   POROUS SILICON
   OPTICAL-PROPERTIES
   OXIDIZED SI
   SEMICONDUCTOR NANOWIRES
   PHASE-TRANSFORMATIONS
   NANOCRYSTALS
   CONFINEMENT
Аннотация: The atomic and electronic structures of a set of proposed pentagonal thin (1.6 nm in diameter) silicon/silica quantum nanodots (QDs) and nanowires (NWs) with narrow interface, as well as parent metastable silicon structures (1.2 nm in diameter), were studied using cluster B3LYP/6-31G(*) and periodic boundary condition (PBC) plane-wave (PW) pseudopotential (PP) local-density approximation methods. The total density of states (TDOS) of the smallest quasispherical QD (Si-85) corresponds well to the PBC PW PP LDA TDOS of the crystalline silicon. The elongated SiQDs and SiNWs demonstrate the metallic nature of the electronic structure. The surface oxidized layer opens the band gap in the TDOS of the Si/SiO2 species. The top of the valence band and the bottom of conduction band of the particles are formed by the silicon core derived states. The theoretical band gap width is determined by the length of the Si/SiO2 clusters and describes the size confinement effect in the experimental photoluminescence spectra of the silica embedded nanocrystalline silicon with high accuracy.

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Держатели документа:
Japan Atom Energy Agcy, Adv Sci Res Ctr, Takasaki Branch, Takasaki, Gumma 3701292, Japan
Russian Acad Sci, LV Kirensky Phys Inst, SB, Krasnoyarsk 660036, Russia
Russian Acad Sci, NM Emanuel Inst Biochem Phys, Moscow 119334, Russia
Kyoto Univ, Dept Energy Sci & Technol, Kyoto 6068501, Japan
ИФ СО РАН

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Kuzubov, A. A.; Кузубов, Александр Александрович; Fedorov, A. S.; Федоров, Александр Семенович; Sorokin, P. B.; Tomilin, F. N.; Томилин, Феликс Николаевич; Maeda, Y.
}
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Quantum dots embedded into silicon nanowires effectively partition electron confinement / P. V. Avramov [et al.] // J. Appl. Phys. - 2008. - Vol. 104, Is. 5. - Ст. 54305, DOI 10.1063/1.2973464. - Cited References: 22. - This work was, in part, partially supported by a Core Research for Evolutional Science and Technology (CREST) grant in the area of high performance computing for multi-scale and multiphysics phenomena from the Japan Science and Technology Agency (JST) as well as by the Russian Fund of Basic Researches (Grant No. 05-02-17443) (L.A.C.). One of the authors (P.V.A.) acknowledges the encouragement of Dr. Keiji Morokuma, Research Leader at Fukui Institute. The geometry of all presented structures was visualized by ChemCraft software. SUP23/SUP L.A.C. acknowledges I. V. Stankevich for help and fruitful discussions. P.B.S. is grateful to the Joint Supercomputer Center of the Russian Academy of Sciences for access to a cluster computer for quantum-chemical calculations. . - ISSN 0021-8979

РУБ Physics, Applied
Рубрики:
OPTICAL-PROPERTIES
   POROUS SILICON
   WIRES
   PREDICTION
   GROWTH
Кл.слова (ненормированные):
Electric currents -- Electric wire -- Electronic states -- Electronic structure -- Nanostructured materials -- Nanostructures -- Nanowires -- Nonmetals -- Optical waveguides -- Plasma confinement -- Quantum confinement -- Quantum electronics -- Semiconducting silicon compounds -- Silicon -- electronic state -- Band gaps -- Electron confinements -- Electronic-structure calculations -- Embedded structures -- Quantum confinement effect -- Quantum dots -- Semi-empirical methods -- Silicon nanowires -- Silicon quantum dots -- Semiconductor quantum dots
Аннотация: Motivated by the experimental discovery of branched silicon nanowires, we performed theoretical electronic structure calculations of icosahedral silicon quantum dots embedded into pentagonal silicon nanowires. Using the semiempirical method, we studied the quantum confinement effect in the fully optimized embedded structures. It was found that (a) the band gaps of the embedded structures are closely related to the linear sizes of the longest constituting part rather than to the total linear dimension and (b) the discovered atypical quantum confinement with a plateau and a maximum can be attributed to the substantial interactions of near Fermi level electronic states of the quantum dots and nanowire segments. (c) 2008 American Institute of Physics.

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Держатели документа:
[Avramov, Pavel V.] Kyoto Univ, Fukui Inst Fundamental Chem, Kyoto 6068103, Japan
[Fedorov, Dmitri G.] Natl Inst Adv Ind Sci & Technol, Res Inst Computat Sci, Tsukuba, Ibaraki 3058568, Japan
[Sorokin, Pavel B.
Ovchinnikov, Sergei G.] LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
[Sorokin, Pavel B.
Ovchinnikov, Sergei G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Sorokin, Pavel B.
Chernozatonskii, Leonid A.] RAS, NM Emanuel Inst Biochem Phys, Moscow 119334, Russia
ИФ СО РАН
Fukui Institute for Fundamental Chemistry, Kyoto University, 34-3 Takano Nishihiraki, Sakyo, Kyoto 606-8103, Japan
Research Institute for Computational Science, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8568, Japan
L.V. Kirensky Institute of Physics, SB, RAS, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 79 Svobodny Av., 660041 Krasnoyarsk, Russian Federation
N.M. Emanuel Institute of Biochemical Physics, RAS, 119334 Moscow, Russian Federation

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Fedorov, D. G.; Sorokin, P. B.; Chernozatonskii, L. A.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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    Atypical quantum confinement effect in silicon nanowires / P. B. Sorokin [et al.] // J. Phys. Chem. A. - 2008. - Vol. 112, Is. 40. - P9955-9964, DOI 10.1021/jp805069b. - Cited Reference Count: 25. - Гранты: This work was in part partially supported by a CREST (Core Research for Evolutional Science and Technology) grant in the Area of High Performance Computing for Multiscale and Multiphysics Phenomena from the Japan Science and Technology Agency (JST) as well as by Russian Fund of Basic Researches (grant 08-02-01096) (L.A.C.). P.V.A. acknowledges the encouragement of Dr. Keiji Morokuma, Research Leader at Fukui Institute for Fundamental Chemistry. The geometry of all presented structures was visualized by ChemCraft software.SUP25/SUP L.A.C. acknowledges I. V. Stankevich for help and fruitful discussions. P.B.S. is grateful to the Joint Supercomputer Center of the Russian Academy of Sciences for access to a cluster computer for quantum-chemical calculations. - Финансирующая организация: Japan Science and Technology Agency (JST); Russian Fund of Basic Researches [08-02-01096] . - OCT 9. - ISSN 1089-5639
Рубрики:
ELECTRONIC-STRUCTURE
   OPTICAL-PROPERTIES
   SI
   DENSITY
   WIRES
   EXCHANGE
   ATOMS
   DOTS
Кл.слова (ненормированные):
Electric wire -- Energy gap -- Gallium alloys -- Mathematical models -- Nanostructured materials -- Nanostructures -- Nanowires -- Quantum confinement -- Quantum electronics -- Semiconductor quantum dots -- Silicon -- Ami methods -- Band gaps -- Blue shifts -- Dinger equations -- Linear junctions -- Monotonic decreases -- Quantum confinement effects -- Quantum dots -- Semiempirical -- Silicon nanowires -- System sizes -- Theoretical models -- Nanocrystalline silicon -- nanowire -- quantum dot -- silicon -- article -- chemistry -- electron -- quantum theory -- Electrons -- Nanowires -- Quantum Dots -- Quantum Theory -- Silicon
Аннотация: The quantum confinement effect (QCE) of linear junctions of silicon icosahedral quantum dots (IQD) and pentagonal nanowires (PNW) was studied using DFT and semiempirical AM1 methods. The formation of complex IQD/PNW structures leads to the localization of the HOMO and LUMO on different parts of the system and to a pronounced blue shift of the band gap; the typical QCE with a monotonic decrease of the band gap upon the system size breaks down. A simple one-electron one-dimensional Schrodinger equation model is proposed for the description and explanation of the unconventional quantum confinement behavior of silicon IQD/PNW systems. On the basis of the theoretical models, the experimentally discovered deviations from the typical QCE for nanocrystalline silicon are explained.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia
LV Kirenskii Inst Phys, SB RAS, Krasnoyarsk 660036, Russia
RAS, N M Emanuel Inst Biochem Phys, Moscow 119334, Russia
Kyoto Univ, Fukui Inst Fundamental Chem, Kyoto 6068103, Japan
Natl Inst Adv Ind Sci & Technol, Res Inst Computat Sci, Tsukuba, Ibaraki 3058568, Japan

Доп.точки доступа:
Sorokin, P. B.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Avramov, P. V.; Chernozatonskii, L.A.; Fedorov, D.G.
}
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Microstructure and Magnetooptics of Silicon Oxide with Implanted Nickel Nanoparticles / I. S. Edel'man [et al.] // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 6. - P. 1040-1049, DOI 10.1134/S1063776111160035. - Cited References: 44. - This work was supported by the Russian Foundation for Basic Research (project nos. 11-02-00972, 11-02-90420, 11-02-91341) and the program Research and Scientific-Pedagogical Brainpower of Innovated Russia (State contract 02.740.11.0797). . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
SIMPLE METAL-CLUSTERS
   OPTICAL-PROPERTIES
   ION-IMPLANTATION
   FARADAY-ROTATION
   KERR SPECTRA
   GLASS
   RESONANCE
   PHYSICS
   ENERGY
   FE
Кл.слова (ненормированные):
Disperse structure -- Effective medium model -- Implanted samples -- Irradiation dose -- Magnetic circular dichroisms -- Magnetic Nickel -- Magneto-optical Faraday effect -- Magneto-optical measurements -- matrix -- Metal nanoparticles -- Metallic nickel -- Nickel nanoparticles -- Nickel particles -- Optical range -- Spectral dependences -- Surface plasma resonances -- Tensor components -- Thin near-surface layers -- Amorphous silicon -- Crystal microstructure -- Dichroism -- Faraday effect -- Ion implantation -- Magnetoplasma -- Metallic compounds -- Nanomagnetics -- Nanoparticles -- Nickel -- Silicon compounds -- Silicon oxides -- Spectroscopy -- Tensors -- Transmission electron microscopy -- Nickel oxide
Аннотация: Metallic nickel nanoparticles of various sizes are formed in a thin near-surface layer in an amorphous SiO2 matrix during 40-keV Ni+ ion implantation at a dose of (0.25-1.0) x 10(17) ions/cm(2). The micro-structure of the irradiated layer and the crystal structure, morphology, and sizes of nickel particles formed at various irradiation doses are studied by transmission electron microscopy and electron diffraction. The magnetooptical Faraday effect and the magnetic circular dichroism in an ensemble of nickel nanoparticles are studied in the optical range. The permittivity (epsilon) over cap tensor components are calculated for the implanted samples using an effective medium model with allowance for the results of magnetooptical measurements. The spectral dependences of the tensor (epsilon) over cap components are found to be strongly different from those of a continuous metallic nickel film. These differences are related to a disperse structure of the magnetic nickel phase and to a surface plasma resonance in the metal nanoparticles.

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Держатели документа:
[Edel'man, I. S.
Petrov, D. A.
Ivantsov, R. D.
Zharkov, S. M.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Zharkov, S. M.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Khaibullin, R. I.
Valeev, V. F.
Nuzhdin, V. I.
Stepanov, A. L.] Russian Acad Sci, Zavoisky Phys Tech Inst, Kazan 420029, Russia
[Stepanov, A. L.] Kazan Volga Reg Fed Univ, Kazan 420018, Russia
ИФ СО РАН
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, 660041, Russian Federation
Zavoisky Physical-Technical Institute, Russian Academy of Sciences, Sibirskii trakt 10/7, Kazan, 420029, Russian Federation
Kazan (Volga Region), Federal University, ul. Kremlevskaya 18, Kazan, 420018, Russian Federation

Доп.точки доступа:
Edel'man, I. S.; Edelman, I. S.; Petrov, D. A.; Петров, Дмитрий Анатольевич; Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Zharkov, S. M.; Жарков, Сергей Михайлович; Khaibullin, R. I.; Valeev, V. F.; Nuzhdin, V. I.; Stepanov, A. L.
}
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10.

Aver'yanov, E. M.
Anisotropy of the Local Field in Anisotropic Films of Conjugated Polymers / E. M. Aver'yanov // Phys. Solid State. - 2011. - Vol. 53, Is. 9. - P. 1933-1942, DOI 10.1134/S1063783411090046. - Cited References: 51 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
MOLECULAR-WEIGHT DEPENDENCE
   OPTICAL-PROPERTIES
   THIN-FILMS
   MEH-PPV
   POLY(P-PHENYLENE VINYLENE)
   CHAIN ORIENTATION
   REFRACTIVE-INDEX
   CONSTANTS
   POLYACETYLENE
   LIGHT
Аннотация: Using the data on dispersion of refractive indices in the visible region, the experimental values of the components L-j of the Lorentz tensor have been obtained for uniaxial (crystalline, oriented on a substrate, and stretched) films of conjugated polymers from nanometer to micrometer thicknesses. The dependence of the components L-j on the axial and planar orientations of macromolecules with respect to the optical axis of the film, technology of fabricating the films, and chemical structure of macromolecules has been elucidated. The correlation between the components L-j and the measured parameter. has been determined and the analytical dependence L-j(eta) for films with both types of macromolecular orientation has been established. In the visible region (0

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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50-38, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Аверьянов, Евгений Михайлович
}
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11.

Kim, J.
Charge transfer and Mott-Hubbard excitations in FeBO3: An Fe K-edge resonant inelastic x-ray scattering study / J. . Kim, Y. . Shvyd'ko, S. G. Ovchinnikov // Phys. Rev. B. - 2011. - Vol. 83, Is. 23. - Ст. 235109, DOI 10.1103/PhysRevB.83.235109. - Cited References: 67. - Yu.Sh. acknowledges the long-standing effort of his colleagues from the IXS Collaborative Design Team in building MERIX instrument at the XOR-IXS 30-ID beamline at the APS, in particular, J. Hill, S. Coburn (BNL), C. Burns (WMU), E. Alp, T. Toellner, and H. Sinn (APS). He is also indebted to R. Khachatryan (APS), M. Wieczorek (APS), and A. Said (APS) for the help in manufacturing the Ge(620) analyzer. P. Siddons (BNL) is acknowledged for building the microstrip detector for the MERIX spectrometer. The help of the XOR-IXS 30-ID beamline personnel at the Advanced Photon Source: T. Roberts, A. Said, and M. Upton are greatly appreciated. Use of the Advanced Photon Source was supported by the US DOE, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. S.O. acknowledges Russian Academy of Science Physical Department program 5.7 "Strongly correlated electrons," RFFI Grant No. 09-02-00171, RFFI Grant No. 10-02-00251, and the Siberian-Ural integration Project No. 40. . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
TRANSITION-METAL COMPOUNDS
   ELECTRONIC-STRUCTURE
   OPTICAL-PROPERTIES
   ABSORPTION-SPECTRA
   EMISSION SPECTRA
   FERROMAGNET
   DEPENDENCE
   COMPLEXES
   RAMAN
Аннотация: Momentum-resolved resonant inelastic x-ray scattering (RIXS) spectroscopy has been carried out successfully at the Fe K-edge for the first time. The RIXS spectra of a FeBO3 single crystal reveal a wealth of information on similar or equal to 1-10 eV electronic excitations. The IXS signal resonates when the incident photon energy approaches the pre-edge (1s-3d) and the main-edge (1s-4p) of the Fe K-edge absorption spectrum. The RIXS spectra measured at the pre-edge and the main-edge show quantitatively different dependences on the incident photon energy, momentum transfer, photon polarization, and temperature. We present a multielectron analysis of the Mott-Hubbard (MH) and charge transfer (CT) excitations, and calculate their energies. Electronic excitations observed in the pre-edge and main-edge RIXS spectra are interpreted as MH and CT excitations, respectively. We propose the electronic structure around the chemical potential in FeBO3 based on the experimental data.

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Держатели документа:
[Kim, Jungho
Shvyd'ko, Yuri] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[Ovchinnikov, S. G.] Russian Acad Sci, Kirensky Inst, Siberian Div, Krasnoyarsk 660036, Russia
[Ovchinnikov, S. G.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, United States
Kirensky Institute, Siberian Division, Russian Academy of Sciences, 660036, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, 660014, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shvyd'ko, Y.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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12.

Vetrov, S. Ya.
Spectral properties of a one-dimensional photonic crystal with a resonant defect nanocomposite layer / S. Y. Vetrov, A. Y. Avdeeva, I. V. Timofeev // J. Exp. Theor. Phys. - 2011. - Vol. 113, Is. 5. - P. 755-761, DOI 10.1134/S1063776111140093. - Cited References: 33. - This work was supported by projects nos. NSh-7810.2010.3, RNP.2.1.1.3455, 27.1 and 3.9.1 of the Russian Academy of Sciences, 5 and 144 of the Siberian Branch of the Russian Academy of Sciences, and State contract no. 02.740.11.0220 according to the program Research and Scientific-Pedagogical Brainpower of Innovated Russia. . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
OPTICAL-PROPERTIES
   SEMICONDUCTOR MICROCAVITIES
   2ND-HARMONIC GENERATION
   HETEROGENEOUS MEDIA
   MODE
   ENHANCEMENT
   DISPERSION
   SYSTEM
Аннотация: The spectral properties of a one-dimensional photonic crystal with a defect nanocomposite layer that consists of metallic nanoballs distributed in a transparent matrix and is characterized by an effective resonance permittivity are studied. The problem of calculating the transmission, reflection, and absorption spectra of p-polarized waves in such structures is solved for oblique incidence of light, and the spectral manifestation of defect-mode splitting as a function of the volume fraction of nanoballs and the structural parameters is studied. The splitting is found to depend substantially on the nanoball concentration in the defect, the defect layer thickness, and the angle of incidence. The angle of incidence is found at which the resonance frequency of the nanocomposite is located near the edge of the bandgap or falls in the frequency region of a continuous spectrum. The resonance situation appearing in this case results in an additional transmission band or an additional bandgap in the transmission spectrum.

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Держатели документа:
[Vetrov, S. Ya.
Avdeeva, A. Yu.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Timofeev, I. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Avdeeva, A. Y.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич
}
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13.

Voltage-induced defect mode coupling in a one-dimensional photonic crystal with a twisted-nematic defect layer / I. V. Timofeev [et al.] // Phys. Rev. E. - 2012. - Vol. 85, Is. 1. - Ст. 11705, DOI 10.1103/PhysRevE.85.011705. - Cited References: 39. - This work was supported in part by DSP Grant No. 2.1.1/3455; RAS Grants No. 3.9.1 and No. 21.1, SB RAS Grants No. 5 and No. 144, and by the National Science Council of Taiwan under Grant No. NSC 98-2923-M-033-001-MY3. . - ISSN 1539-3755

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
LIQUID-CRYSTAL
   REFLECTION SPECTRUM
   OPTICAL-PROPERTIES
   ANISOTROPIC MEDIA
   ELECTRIC-FIELD
   EIGENVALUES
   ORIENTATION
Аннотация: Defect modes are investigated in a band gap of an electrically tunable one-dimensional photonic crystal infiltrated with a twisted-nematic liquid crystal. Their frequency shift and interference under applied voltage are studied both experimentally and theoretically. We deal with the case where the defect layer thickness is much larger than the wavelength (i.e., the Mauguin condition). It is shown theoretically that the defect modes could have a complex structure with elliptic polarization. Two series of polarized modes are coupled with each other and exhibit an avoided crossing phenomenon in the case of opposite parity.

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Держатели документа:
[Timofeev, Ivan V.
Gunyakov, V. A.
Myslivets, Sergey A.
Arkhipkin, V. G.
Zyryanov, Victor Ya] Russian Acad Sci, Krasnoyarsk Sci Ctr, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Timofeev, Ivan V.
Gunyakov, Vladimir A.
Arkhipkin, V/ G.
Vetrov, Stepan Ya] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Lin, Yu-Ting] Chung Yuan Christian Univ, Master Program Nanotechnol, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Christian Univ, Dept Phys, Chungli 32023, Taiwan
[Lee, Wei] Chung Yuan Christian Univ, Ctr Nanotechnol, Chungli 32023, Taiwan
[Zyryanov, Victor Ya] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Lin, Y. T.; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vetrov, S. Y.; Lee, W.; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич
}
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14.

Spectral properties of a two-dimensional resonant metal-dielectric photonic crystal / S. Y. Vetrov [et al.] // Opt. Spectrosc. - 2012. - Vol. 112, Is. 4. - P. 585-593, DOI 10.1134/S0030400X12030204. - Cited References: 17. - This work was supported by grants RNP no. 2.1.1/3455, OFN RAN no. 3.9.1, Presidium of the Russian Academy of Sciences no. 21.1, and "Integration" SO RAN nos. 5 and 144. . - ISSN 0030-400X

РУБ Optics + Spectroscopy
Рубрики:
HETEROGENEOUS MEDIA
OPTICAL-PROPERTIES
Аннотация: We have studied the transmission spectra of resonant two-dimensional photonic crystals of two types, one of which consists of nanocomposite cylinders that form a square lattice in vacuum and the other of which consists of cylindrical holes that form a square lattice in nanocomposite matrix. The nanocomposite consists of metallic nanospheres that are dispersed in a transparent matrix and is characterized by an effective resonant dielectric permittivity. We show that, depending on the position of the resonant frequency of the nanocomposite with respect to the boundaries of the band gap, there arises either an additional transmission band in the transmission spectrum in the band gap or an additional band gap in the continuous spectrum of the photonic crystal. As the structural and geometric parameters of the system change, both the additional transmission band and the additional band gap are considerably modified. We analyze particular features of the spatial distribution of the electromagnetic field intensity in crystals. The considered effects can be used to extend the possibilities of creating new photonic crystals with specified properties.

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Публикация на русском языке Спектральные свойства двумерного металл-диэлектрического резонансного фотонного кристалла [Текст] / С. Я. Ветров [и др.] // Оптика и спектроскопия : Наука, 2012. - Т. 112 № 4. - С. 638–646

Держатели документа:
[Vetrov, S. Ya
Rudakova, N. V.
Timofeev, V. P.] Siberian Fed Univ, Krasnoyarsk 660074, Russia
[Timofeev, I. V.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vetrov, S. Y.; Rudakova, N. V.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Timofeev, V. P.
}
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15.

Aver'yanov, E. M.
Orientational order and evolution of the properties of biomolecules in anisotropic media / E.M. Aver'yanov // JETP Letters. - 2012. - Vol. 95, Is. 1. - P. 51-54, DOI 10.1134/S002136401201002X. - Cited References: 18 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
OPTICAL-PROPERTIES
FILMS
Аннотация: Experimental values of the Lorentz tensor components and the local field of a light wave have been obtained for anisotropic films of polypeptide and DNA. These data indicate an increase in the mean value and anisotropy of the polarizability of biomolecules with respect to an isotropic solution. These changes in the polarizability as an indicator of the response of biomolecules to external actions, as well as their chemical and biological activity, specify the direction of the evolution of the properties of biomolecules in orientationally ordered media.

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Публикация на русском языке Аверьянов, Евгений Михайлович. Ориентационный порядок и эволюция свойств биомолекул в анизотропных средах [Текст] / Е.М. Аверьянов // Письма в Журн. эксперим. и теор. физ. : Наука, 2012. - Т. 95 Вып. 1-2. - С. 55-58

Доп.точки доступа:
Аверьянов, Евгений Михайлович
}
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16.

Effects of size polydispersity on the extinction spectra of colloidal nanoparticle aggregates / A. E. Ershov [et al.] // Phys. Rev. B. - 2012. - Vol. 85, Is. 4. - Ст. 045421. - P. , DOI 10.1103/PhysRevB.85.045421. - Cited References: 41. - This work was supported by grants from the following foundations of the Russian Federation: Presidium of RAS, OFN RAS, and SB RAS. . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
METAL FRACTAL CLUSTERS
   OPTICAL-PROPERTIES
   ABSORPTION
   NONLINEARITIES
   COMPOSITES
   SCATTERING
   PARTICLES
   SPHERES
   GRAINS
Аннотация: We investigate the effect of particle polydispersity on the optical extinction spectra of colloidal aggregates of spherical metallic (silver) nanoparticles, taking into account the realistic interparticle gaps caused by layers of stabilizing polymer adsorbed on the metal surface (adlayers). The spectra of computer-generated aggregates are computed using two different methods. The coupled-multipole method is used in the quasistatic approximation and the coupled-dipole method beyond the quasistatics. The latter approach is applicable if the interparticle gaps are sufficiently wide relative to the particle radii. Simulations are performed for two different particle size distribution functions (bimodal and Gaussian), varying the number of particles per aggregate, and different distribution functions of the interparticle gap width. The strong influence of the latter factor on the spectra is demonstrated and investigated in detail.

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Держатели документа:
[Ershov, Alexander E.
Isaev, Ivan L.
Semina, Polina N.
Karpov, Sergei V.] Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Ershov, Alexander E.
Karpov, Sergei V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Markel, Vadim A.] Univ Penn, Dept Bioengn, Dept Radiol, Philadelphia, PA 19104 USA
[Markel, Vadim A.] Univ Penn, Grad Grp Appl Math & Computat Sci, Philadelphia, PA 19104 USA

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Isaev, I. L.; Исаев, Иван Леонидович; Semina, P. N.; Семина, Полина Николаевна; Markel, V. A.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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17.

High-temperature heat capacity of YbAl3(BO3)4 / V. M. Denisov [et al.] // Russ. J. Phys. Chem. A. - 2014. - Vol. 88, Is. 8. - P. 1436-1437, DOI 10.1134/S0036024414080093. - Cited References: 14 . - ISSN 0036-0244. - ISSN 1531-863X

РУБ Chemistry, Physical
Рубрики:
SINGLE-CRYSTALS
   OPTICAL-PROPERTIES
   LASER CRYSTAL
   YAl3(BO3)4
   GROWTH
Кл.слова (ненормированные):
ytterbium aluminum borate -- high-temperature heat capacity -- thermodynamic properties
Аннотация: The isobaric heat capacity Cp(T) of YbAl3(BO3)4 grown by spontaneous crystallization from solution (100 − n) wt % (Bi2Mo3O12 + 2.5% B2O3 + 0.75% Li2MoO4) + n wt % YbAl3(BO3)4 is studied experimentally in the region of 344–1016 K. It is established that there are no extrema on the Cp(T) dependence, and the obtained data can be described using the Berman-Brown polynomial. The temperature variations of enthalpy and entropy are calculated from the Cp(T) dependence.

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Публикация на русском языке Высокотемпературная теплоемкость YbAl3(BO3)4 [Текст] / В. М. Денисов [и др.] // Журн. физ. химии : Наука, 2014. - Т. 88 № 7-8. - С. 1264-1265

Держатели документа:
Siberian Fed Univ, Inst Nonferrous Met & Mat Sci, Krasnoyarsk 660025, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Denisov, V. M.; Denisova, L. T.; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Patrin, G. S.; Патрин, Геннадий Семёнович; Volkov, N. V.; Волков, Никита Валентинович; Chumilina, L. G.
}
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18.

Vetrov, S. Ya.
Photonic defect modes in a cholesteric liquid crystal with a resonant nanocomposite layer and a twist defect / S. Y. Vetrov, M. V. Pyatnov, I. V. Timofeev // Phys. Rev. E. - 2014. - Vol. 90, Is. 3. - Ст. 32505, DOI 10.1103/PhysRevE.90.032505. - Cited References: 36. - This work was partially supported by Grants No. 43, No. 101, and No. 24.29 of SB RAS; Russian Fund of Fundamental Research Grant No. 14-02-31248; Russian Ministry of Education and Science under the Government program, Project No. 3.1276.2014/K; Grant of the President of the Russian Federation Grant No. MK-250.2013.2, and the NSCT-SB RAS joint project. . - ISSN 1539-3755. - ISSN 1550-2376

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
OPTICAL-PROPERTIES
   GENERATION
   MEDIA
   FILMS
Аннотация: We have studied spectral properties of a cholesteric liquid crystal with a combined defect consisting of a nanocomposite layer and a twist. The nanocomposite layer is made of metallic nanoballs dispersed in a transparent matrix and featuring effective resonant permittivity. A solution has been found for the transmission spectrum of circularly polarized waves in the structure. We have analyzed spectral splitting of the defect mode in the band gap of the cholesteric when its frequency coincides with the nanocomposite resonant frequency. Defect modes have characteristics strongly dependent on the magnitude and the sign of the phase difference of the cholesteric helix on both sides of the defect layer. It has been found that the band gap width and the position and localization degree of defect modes can be effectively controlled by external fields applied to the cholesteric.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia
Krasnoyarsk State Med Univ, Krasnoyarsk 660022, Russia
Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Pyatnov, M. V.; Пятнов, Максим Владимирович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Ветров, Степан Яковлевич; SB RAS [43, 101, 24.29]; Russian Fund of Fundamental Research Grant [14-02-31248]; Russian Ministry of Education and Science under the Government program [3.1276.2014/K]; Russian Federation [MK-250.2013.2]; NSCT-SB RAS joint project
}
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19.

Optodynamic phenomena in aggregates of polydisperse plasmonic nanoparticles / A. E. Ershov [et al.] // Appl. Phys. B. - 2014. - Vol. 115, Is. 4. - P. 547-560, DOI 10.1007/s00340-013-5636-6. - Cited References: 48. - Authors are thankful to Prof. V. A. Markel (University of Pennsylvania) for supplying program codes for realization of the coupled dipole method for polydisperse metal nanoparticle aggregates. This research was supported by the Russian Academy of Sciences under the Grants 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101); Ministry of Education and Science of Russian Federation under Contract 14.B37.21.0457. . - ISSN 0946-2171. - ISSN 1432-0649

РУБ Optics + Physics, Applied
Рубрики:
SMALL-PARTICLE COMPOSITES
   OPTICAL-PROPERTIES
   NOBLE-METALS
   SILVER
   ELECTRON
   LIQUID
   GENERATION
   DYNAMICS
   FORCES
   GOLD
Аннотация: We propose an optodynamical model of interaction of pulsed laser radiation with aggregates of spherical metallic nanoparticles embedded into host media. The model takes into account polydispersity of particles, pair interactions between the particles, dissipation of absorbed energy, heating and melting of the metallic core of particles and of their polymer adsorption layers, and heat exchange between electron and ion components of the particle material as well as heat exchange with the interparticle medium. Temperature dependence of the electron relaxation constant of the particle material and the effect of this dependence on interaction of nanoparticles with laser radiation are first taken into consideration. We study in detail light-induced processes in the simplest resonant domains of multiparticle aggregates consisting of two particles of an arbitrary size in aqueous medium. Optical interparticle forces are realized due to the light-induced dipole interaction. The dipole moment of each particle is calculated by the coupled dipole method (with correction for the effect of higher multipoles). We determined the role of various interrelated factors leading to photomodification of resonant domains and found an essential difference in the photomodification mechanisms between polydisperse and monodisperse nanostructures.

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Держатели документа:
Russian Acad Sci, LV Kirenski Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Semina, P. N.; Семина, Полина Николаевна; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101)]; Ministry of Education and Science of Russian Federation [14.B37.21.0457]
}
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20.

Synthesis and luminescence properties of Li2O–Y2O3–TeO2:Eu3+ tellurite glass / V. V. Atuchin [et al.] // Mater. Chem. Phys. - 2014. - Vol. 147, Is. 3. - P. 1191-1194, DOI 10.1016/j.matchemphys.2014.07.003. - Cited References: 26. - This study is partly supported by the Ministry of Education and Science of the Russian Federation. . - ISSN 0254-0584. - ISSN 1879-3312

РУБ Materials Science, Multidisciplinary
Рубрики:
LIGHT-EMITTING-DIODES
   SPECTROSCOPIC PROPERTIES
   OPTICAL-PROPERTIES
   ENERGY-TRANSFER
   CERAMICS
   Eu3+
   PHOTOLUMINESCENCE
   TEMPERATURE
   EMISSION
   PHOSPHOR
Кл.слова (ненормированные):
Glasses -- Heat treatment -- Photoluminescence spectroscopy -- Optical properties
Аннотация: The Eu3+-doped red-orange emitting phosphor of tellurite glass 0.25Li2O–0.20Y2O3–0.5TeO2–0.05Eu2O3 has been synthesized by the melt quenching method. The amorphous nature of the glass has been verified by XRD measurements. The photoluminescence excitation and emission spectra, the luminescence decay curves have been investigated for the composition. The phosphor can be efficiently excited by the near UV light to realize the intense narrow red emission line (611 nm) corresponding to forced electric dipole transition 5D0 → 7F2 of Eu3+ ions. The Li2O–Y2O3–TeO2:Eu3+glass phosphor is a potential red-orange emitting candidate for the application in WLEDs.

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Держатели документа:
SB RAS, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia
Tomsk State Univ, Funct Elect Lab, Tomsk 634050, Russia
Novosibirsk State Univ, Lab Semicond & Dielect Mat, Novosibirsk 630090, Russia
SB RAS, Inst Geol & Mineral, Lab High Pressure Minerals & Diamond Deposits, Novosibirsk 630090, Russia
Novosibirsk State Univ, Dept Appl Phys, Novosibirsk 630090, Russia
SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Atuchin, V. V.; Yelisseyev, A. P.; Galashov, E. N.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Ministry of Education and Science of the Russian Federation
}
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