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Dynamic Changes of Optical Characteristics of Resonant Domains in Metal Nanoparticle Aggregates under Pulsed Laser Fields [Text] / Gavrilyuk A.P., Karpov S.V. // Applied Physics B: Lasers and Optics. - 2010. - Vol. 101. - P512

Доп.точки доступа:
Gavrilyuk, A.P.; Karpov, S.V.
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Dynamic changes of optical characteristics of resonant domains in metal nanoparticle aggregates under pulsed laser fields [Text] / A. P. Gavrilyuk, S. V. Karpov. // Technical digest International conference ICONO/LAT 2010. - Казань, 2010. - Ст. ITuQ39

Доп.точки доступа:
Gavrilyuk, A.P.; Karpov., S.V.; International Conference on Coherent and Nonlinear Optics(2010 ; Aug. ; 23-26 ; Казань); International Conference on Lasers, Applications, and Technologies(2010 ; Aug. ; 23-26 ; Казань)
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Effect of local environment in resonant domains of polydisperse plasmonic nanoparticle aggregates on optodynamic processes in pulsed laser fields / A. E. Ershov [et al.] // Chin. Phys. B. - 2015. - Vol. 24, Is. 4. - Ст. 047804, DOI 10.1088/1674-1056/24/4/047804. - Cited References:25. - Project supported by the Russian Academy of Sciences (Grant Nos. 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), and 3-9-5). . - ISSN 1674. - ISSN 1741-4199. -

РУБ Physics, Multidisciplinary
Рубрики:
METAL NANOPARTICLES
GOLD NANOPARTICLES
OPTICAL-PROPERTIES
Кл.слова (ненормированные):
nanoparticle -- surface plasmon -- colloid aggregate -- optodynamics
Аннотация: Interactions of pulsed laser radiation with resonance domains of multiparticle colloidal aggregates having an increasingly complex local environment are studied via an optodynamic model. The model is applied to the simplest configurations, such as single particles, dimers, and trimers consisting of mono- and polydisperse Ag nanoparticles. We analyze how the local environment and the associated local field enhancement by surrounding particles affect the optodynamic processes in domains, including their photomodification and optical properties.

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Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, 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), 3-9-5]
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Electric and magnetic field-assisted orientational transitions in the ensembles of domains in a nematic liquid crystal on the polymer surface / A. M. Parshin [et al.] // Int. J. Mol. Sci. - 2014. - Vol. 15, Is. 10. - P. 17838-17851, DOI 10.3390/ijms151017838. - Cited References: 21. - This work was partially supported by the Russian Foundation for Basic Research (project No. 12-03-00816), and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through Grants Nos. 30, 24.29, 24.32, and by SB RAS through a Taiwan-SB-RAS joint project. . - ISSN 1422-0067

РУБ Chemistry, Multidisciplinary
Рубрики:
FRANK CONSTANTS
   INTERFACE
   ALIGNMENT
   DISCLINATIONS
   STABILITY
   COATINGS
   DIRECTOR
Кл.слова (ненормированные):
liquid crystal -- polycarbonate -- domain structure -- electric field -- magnetic field
Аннотация: Using electro- and magneto-optical techniques, we investigated orientational transitions in the ensembles of domains in a nematic liquid crystal on the polycarbonate film surface under the conditions of competing surface forces that favor radial and uniform planar alignment of nematic molecules. Having analyzed field dependences of the intensity of light passed through a sample, we established the threshold character of the orientational effects, plotted the calculated intensity versus magnetic coherence length, and compared the latter with the equilibrium length that characterizes the balance of forces on the polymer surface.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Dept Energy, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович; Russian Foundation for Basic Research [12-03-00816]; Siberian Branch of the Russian Academy of Sciences (SB RAS) [30, 24.29, 24.32]; SB RAS through a Taiwan-SB-RAS joint project
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Heat capacity and thermal expansion study of relaxor-ferroelectric Ba0.92Ca0.08Ti0.76Zr0.24O3 / M. . Gorev [et al.] // J. Phys.: Condens. Matter. - 2004. - Vol. 16, Is. 39. - P. 7143-7150, DOI 10.1088/0953-8984/16/39/045. - Cited References: 18 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
CERAMICS
BA(TI1-XZRX)O-3
PEROVSKITES
Кл.слова (ненормированные):
Calorimetry -- Dielectric properties -- Ferroelectric materials -- Perovskite -- Phase transitions -- Solid solutions -- Specific heat -- Thermal expansion -- Adiabatic calorimetry -- Frequency dispersion -- Polar domains -- Relaxor ferroelectrics -- Barium compounds
Аннотация: Heat capacity and thermal expansion of the Ba0.92Ca0.08Ti0.76Zr0.24O3 compound is measured using the methods of adiabatic calorimetry and optic-mechanical dilatometry in the temperature range 100-370 K. Three blurred anomalies on the C-p(T) and alpha(T) dependencies are observed in the temperature range 200-360 K. The results of the studies are discussed together with data on the structure and dielectric properties in the framework of spherical random bond-random field model.

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Держатели документа:
CNRS, CEMES, F-31055 Toulouse, France
ИФ СО РАН
L V kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Gorev, M. V.; Горев, Михаил Васильевич; Flerov, I. N.; Флёров, Игорь Николаевич; Bondarev, V. S.; Бондарев, Виталий Сергеевич; Sciau, P.; Savariault, J. M.
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Hydrostatic pressure-induced phase transitions in Rb2KInF 6 and Rb2KScF6 crystals : Raman spectra and lattice dynamics simulations / A. N. Vtyurin [et al.] // Ferroelectrics. - 2012. - Vol. 440. - P. 100-104, DOI 10.1080/00150193.2012.743375. - Cited References: 10. - This work has been financially supported by grants: Russian Foundation for Basic Research (project nos. 11-02-98002-r_sibir' and 09-02-00062), the Siberian Branch of the Russian Academy of Sciences (integration project no. 101), and the Council on Grants from the President of the Russian Federation (grant no. HSh-4645.2010.2). . - ISSN 0015-0193
Кл.слова (ненормированные):
Rb2KInF6 -- Rb2KScF6 -- phase transitions -- Raman scattering -- lattice dynamics
Аннотация: Raman scattering spectra of Rb2KInF6 and Rb2KScF6 crystals have been studied under hydrostatic pressure up to 5.3 GPa at room temperature. Results are interpreted within semiempirical simulations of the lattice dynamics. Observed phase transitions both in Rb2KInF6 and Rb2KScF6 crystals are associated with condensation of soft F-1g phonon mode. High-pressure phases for both crystals are supposed to be of C2/m space group.

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Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Goryainov, S. V.; Voronov, V. N.; Воронов, Владимир Николаевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures(11 ; 2012 ; Ekaterinburg); Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(11 ; 2012 ; Aug. ; 20-24 ; Ekaterinburg)
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Interference of nonpolarized light in liquid crystal domains on a polymer surface / A. M. Parshin [et al.] // J. Opt. Soc. Am. B. - 2019. - Vol. 36, Is. 7. - P. 1845-1849, DOI 10.1364/JOSAB.36.001845. - Cited References: 23 . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
FRIEDERICKSZ THRESHOLD
   FIELD
   LAYER
   FILM
Аннотация: The interference of nonpolarized light transmitted through an ensemble of nematic liquid crystal domains formed on a polycarbonate surface has been investigated. A model based on the superposition of the ordinary and extraordinary beams passing through domains with a radial structure has been developed. Expressions for the phase difference and intensity of the interfering beams have been derived that take into account the distribution of the liquid crystal director field. The dependences of the optical transmittance of a domain layer on the applied voltage have been calculated with regard to the material and optical constants of a liquid crystal and structural features and averaged morphological parameters of individual domains in the experimental sample. The results of the calculation are consistent with the experimental data, which confirms the validity of the proposed model. (C) 2019 Optical Society of America

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Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Barannik, A. V.; Баранник, Алексей Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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Parshin, A. M.
Interference of the light passing through LC domains formed on the polymer surface / A. M. Parshin, A. V. Shabanov, V. Ya. Zyryanov // 14th Eur. Conf. Liq. Cryst. (ECLC) : conf. programme / чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст. P50. - Библиогр.: 1 . - Poster

Материалы конференции,
Материалы конференции

Доп.точки доступа:
Zyryanov, V. Ya. \чл. нац. орг. и прогр. ком.\; Зырянов, Виктор Яковлевич; Shabanov, A. V.; Шабанов, Александр Васильевич; Zyryanov, V. Ya.; Паршин, Александр Михайлович; European Conference on Liquid Crystals(14 ; 2017 ; June ; 25-30 ; Moscow); Московский государственный университет им. М.В. Ломоносова
}
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Lattice dynamics and phase transitions in A2BMeF6 elpasolites studied by raman scattering / A. N. Vtyurin [et al.] // Proc. Joint Int. Symp: 11th Int. Symp. on Ferroic Domains and Micro-to Nanoscopic Structures and 11th - Russia/CIS/Baltic/Japan Symp. on Ferroelectricity. - 2012. - P. 55

Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Goryainov, S. V.; Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Voronov, V. N.; Воронов, Владимир Николаевич; Объединенный международный симпозиум ISFD-11th-RCBJSF (11 ; 2012 ; авг. ; 20-24 ; Екатеринбург); International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures (11 ; 2012 ; Aug. ; 20-24 ; Ekaterinburg); Международный симпозиум по доменам в ферроиках, микро- и нано-масштабным структурам (11 ; 2012 ; авг. ; 20-24 ; Екатеринбург); Russian-CIS-Baltic-Japan Symposium on Ferroelectricity (11 ; 2012 ; Aug. ; 20-24 ; Ekaterinburg); Российско-Японский и стран Балтии и СНГ симпозиум по сегнетоэлектричеству (11 ; 2012 ; авг. ; 20-24 ; Екатеринбург); Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина
}
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10.

Lattice dynamics and phase transitions in A[[d]]2[[/d]]BMeF[[d]]6[[/d]] elpasolites studied by raman scattering / A. S. Krylov [и др.] // Proc. Joint Int. Symp: 11th Int. Symp. on Ferroic Domains and Micro-to Nanoscopic Structures and 11th - Russia/CIS/Baltic/Japan Symp. on Ferroelectricity. - 2012. - P207

Доп.точки доступа:
Vtyurin, A. N.; Втюрин, Александр Николаевич; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Krylov, A. S.; Крылов, Александр Сергеевич; Krylova, S. N.; Крылова, Светлана Николаевна; Goryainov, S. V.; Горяйнов, Сергей Владимирович; Voronov, V. N.; Воронов, Владимир Николаевич; Объединенный международный симпозиум ISFD-11th-RCBJSF (11 ; 2012 ; авг. ; 20-24 ; Екатеринбург); International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures (11 ; 2012 ; Aug. ; 20-24 ; Ekaterinburg); Международный симпозиум по доменам в ферроиках, микро- и нано-масштабным структурам (11 ; 2012 ; авг. ; 20-24 ; Екатеринбург); Russian-CIS-Baltic-Japan Symposium on Ferroelectricity (11 ; 2012 ; Aug. ; 20-24 ; Ekaterinburg); Российско-Японский и стран Балтии и СНГ симпозиум по сегнетоэлектричеству (11 ; 2012 ; авг. ; 20-24 ; Екатеринбург); Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина
}
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11.

Lattice dynamics of oxyfluoride Rb2KMoO3F3 / A. S. Krylov [et al.] // Ferroelectrics. - 2012. - Vol. 441. - P. 52-60, DOI 10.1080/00150193.2012.743791. - Cited References: 23 . - ISSN 0015-0193

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
PHASE-TRANSITIONS
   RAMAN-SCATTERING
   ELPASOLITE
   CRYSTALS
   DISORDER
   SPECTRA
   CS
Кл.слова (ненормированные):
Oxyfluorides -- lattice dynamics -- Ramam measurements
Аннотация: The complete Raman spectra of oxyfluoride Rb2KMoO 3F3 were obtained. At T ≈ 185 K phase transitions were found. Lattice dynamics of disordered structures of the investigated compound was simulated, and "soft" vibrational modes were found in the calculated spectrum. Copyright © Taylor & Francis Group, LLC.

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Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Sofronova, S. N.; Софронова, Светлана Николаевна; Kolesnikova, E. M.; Колесникова, Евгения Михайловна; Vtyurin, A. N.; Втюрин, Александр Николаевич; Isaenko, L. I.; International Symposium on Ferroic Domains and Micro- to Nanoscopic Structures(11th ; 20-24 Aug. 2012 ; Ekaterinburg, Russia); Russia/CIS/Baltic/Japan Symposium on Ferroelectricity(11 ; 2012 ; Aug. ; 20-24 ; Ekaterinburg)
}
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12.

Light interference in a hybrid-aligned nematic layer with nonordered surface disclination lines / A. M. Parshin, A. V. Barannik, V. Y. Zyryanov, V. F. Shabanov // J. Opt. Soc. Am. B. - 2020. - Vol. 37, Is. 7. - P. 2053-2057, DOI 10.1364/JOSAB.395976. - Cited References: 19 . - ISSN 0740-3224. - ISSN 1520-8540

РУБ Optics
Рубрики:
LIQUID-CRYSTAL
   SCATTERING
   DEFECTS
   DOMAINS
Аннотация: The propagation of a laser beam through a hybrid-aligned nematic layer with a surface disclination line has been investigated. A model of the light interference has been developed to consider the scattering by the structural inhomogeneities. The analytical expression that includes the factor characterizing an exponential decrease in the light scattering has been obtained. The dependence of the intensity of light transmitted through the layer on the magnetic field has been measured. The dependence has been accompanied by the interference oscillations. The theoretical expression is consistent with the experiment, which confirms the correctness of the model concepts.

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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Parshin, A. M.; Паршин, Александр Михайлович; Barannik, A. V.; Баранник, Алексей Владимирович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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13.

Parshin, A. M.
Light transmission of liquid crystal domains formed by polycarbonate surface / A. M. Parshin, V. F. Shabanov, V. Y. Zyryanov // Opt. Mater. Express. - 2016. - Vol. 6, Is. 9. - P. 2841-2846, DOI 10.1364/OME.6.002841. - Cited References: 15. - This work was partially supported by the Russian Foundation for Basic Research (projects Nos. 15-02-06924 and 16-53-00073), and by the Siberian Branch of the Russian Academy of Sciences (SB RAS) through Complex Program No. II.2P 0358-2015-0011, 0358-2015-0010. . - ISSN 2159-3930
Кл.слова (ненормированные):
Electric fields -- Electric lines -- Laser beams -- Liquid crystals -- Liquids -- Nematic liquid crystals -- Polycarbonates -- Refractive index -- Coherence distance -- Disclination lines -- Interference oscillations -- Liquid crystal layers -- Monochromatic lasers -- Polarization direction -- Polymer surfaces -- Radial orientation -- Light transmission
Аннотация: We investigate the optical transmission of a monochromatic laser beam passing through an individual domain of a nematic liquid crystal formed by the polycarbonate surface. The domain has the radial orientation structure with a disclination line on the polymer surface, which gradually transforms to "pseudoplanar" alignment at the coherence distance ? from the surface. The dependence of the optical transmittance on an electric field applied to the domain are different at various light polarization directions relative to the disclination lines and, in the absence of an analyzer, are accompanied by interference oscillations. To explain the results obtained, a domain is considered to be a gradient lens with the refractive index variable in the plane perpendicular to the laser beam and the resulting deflecting effect that was collected at the beam path through the liquid crystal layer. © 2016 Optical Society of America.

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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Shabanov, V. F.; Шабанов, Василий Филиппович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Паршин, Александр Михайлович
}
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14.

Volochaev, M. N.
Lorentz microscopy methods for magnetic domain structure study / M. N. Volochaev, L. I. Kveglis, Y. Y. Loginov // IOP Conf. Ser.: Mater. Sci. Eng. - 2017. - Vol. 255, Is. 1. - Ст. 012015, DOI 10.1088/1757-899X/255/1/012015. - Cited References: 12. - This research was supported by Fırat University Scientific Research Projects Unit MF.13.02). Authors acknowledge to Kemerli Firm (Turkey) for their material supports.
Кл.слова (ненормированные):
High resolution transmission electron microscopy -- Magnetic domains -- Magnetic structure -- Transmission electron microscopy
Аннотация: The capabilities of transmission electron microscope Hitachi HT7700 for magnetic domain structure (MDS) study of thin films using Lorentz transmission electron microscopy (LTEM) methods is discussed. Two methods of magnetic domain structure study (defocus method and aperture shift method, including low-angle electron diffraction (LAED)) in thin magnetic films were examined.

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Доп.точки доступа:
Kveglis, L. I.; Loginov, Yu. Yu.; Волочаев, Михаил Николаевич; International Scientific Conference Reshetnev Readings(20 ; 2016 ; Nov. 9-12 ; Krasnoyarsk)
}
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15.

Magnetic and specific heat properties of YFe3(BO3)(4) and ErFe3(BO3)(4) / E. A. Popova [et al.] // J. Phys.: Condens. Matter. - 2010. - Vol. 22, Is. 11. - Ст. 116006, DOI 10.1088/0953-8984/22/11/116006. - Cited References: 26. - This work was supported by DFG grants 436 RUS and HE 3439/6 (FOR 520). The authors are indebted to M N Popova and B Z Malkin for valuable discussions. . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
LINEAR-CHAIN ANTIFERROMAGNETISM
   CRYSTAL-STRUCTURE
   GDFE3(BO3)(4)
   MULTIFERROICS
   BA2COS3
   ORDER
Кл.слова (ненормированные):
Antiferromagnetic orders -- Basal planes -- Experimental data -- Magnetically ordered state -- Antiferromagnetism -- Calorimetry -- Erbium -- Magnetic moments -- Single crystals -- Specific heat -- Magnetic domains
Аннотация: The present paper reports on the specific heat and magnetization of the YFe3(BO3)(4) and ErFe3(BO3)(4) single crystals. In both compounds, antiferromagnetic order of the iron spins evolves at T-N = 38 K. The experimental data suggest that the magnetic moments are in the basal plane of the trigonal crystal for both compounds. In the magnetically ordered state the crystal is subdivided into three types of domains, the magnetic moments of the Fe3+ ions being aligned along the a axis within each domain. For ErFe3(BO3)(4), two non-equivalent magnetic positions of the Er3+ ions in each domain are observed.

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Держатели документа:
[Popova, E. A.] Tech Univ, Moscow State Inst Elect & Math, Moscow 109028, Russia
[Vasiliev, A. N.] Moscow MV Lomonosov State Univ, Low Temp Phys & Superconduct Dept, Moscow 119991, Russia
[Temerov, V. L.
Bezmaternykh, L. N.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Tristan, N.
Klingeler, R.
Buechner, B.] Leibniz Inst Solid State & Mat Res IFW Dresden, D-01171 Dresden, Germany
ИФ СО РАН
Moscow State Institute of Electronics and Mathematics (Technical University), 109028 Moscow, Russian Federation
Low Temperature Physics and Superconductivity Department, Moscow State University, 119991 Moscow, Russian Federation
L v Kirensky Institute of Physics, Siberian Branch of RAS, Krasnoyarsk 660036, Russian Federation
Leibniz-Institute for Solid State and Materials Research IFW Dresden, D-01171 Dresden, Germany

Доп.точки доступа:
Popova, E. A.; Vasiliev, A. N.; Temerov, V. L.; Темеров, Владислав Леонидович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Tristan, N.; Klingeler, R.; Buchner, B.
}
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16.

Magnetic capacitance of the GdxBi1-xFeO3 thin films / S. S. Aplesnin [et al.] // Phys. Solid State. - 2017. - Vol. 59, Is. 4. - P. 667-673, DOI 10.1134/S1063783417040047. - Cited References:19. - This study was supported by the Russian Foundation for Basic Research, projects nos. 15-42-04099 r_sibir'_a, 16-52-00045 Bel_a, and 16-42-240436 r_a and the state order no. 114090470016. . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
BiFeO3
Domains
Аннотация: The capacitance, inductance, and dissipation factor of the GdxBi1–xFeO3 films were measured in the temperature range of 100 K T 800 K in magnetic fields of up to 8 kOe at frequencies of 0.1–100 kHz. The magnetic susceptibility maxima in the low-temperature region and dependences of the relaxation time and inductance on prehistory of the films cooled in zero and nonzero magnetic fields are established. The giant increase in magnetic capacitance in the external bias electric field is found. The results obtained are explained by the domain structure transformation in external electric and magnetic fields.

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Публикация на русском языке Магнитоемкость тонких пленок GdxBi1-xFeO3 [Текст] / С. С. Аплеснин [и др.] // Физ. тверд. тела : Наука, 2017. - Т. 59 Вып. 4. - С. 653-659

Держатели документа:
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Natl Acad Sci Belarus, Sci & Pract Mat Res Ctr, Minsk 220072, Byelarus.

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Kretinin, V. V.; Panasevich, A. M.; Yanushkevich, K. I.; Russian Foundation for Basic Research [15-42-04099 r_sibir'_a, 16-52-00045 Bel_a, 16-42-240436 r_a]; [114090470016]
}
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17.

    Micromagnetic simulation of domain structure in thin permalloy films with in-plane and perpendicular anisotropy / P. N. Solovev, A. V. Izotov, B. A. Belyaev, N. M. Boev // Physica B. - 2020. - Vol. 604. - Ст. 412699, DOI 10.1016/j.physb.2020.412699. - Cited References: 31. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation , agreement number 075-11-2019-054 dated 22.11.2019 . - ISSN 0921-4526
   Перевод заглавия: Микромагнитное моделирование доменной структуры тонких пермаллоевых пленок с одноосной планарной и перпендикулярной анизотропией
Кл.слова (ненормированные):
Micromagnetic simulation -- Thin magnetic film -- Magnetic anisotropy -- Stripe domains -- Hysteresis loop -- Saturation field
Аннотация: We investigate the domain structure formation and magnetization processes in thin permalloy films with in-plane and perpendicular magnetic anisotropy by using micromagnetic simulation. We show that the films of thicknesses less than a critical value Lcr are in the monodomain state, and their magnetization processes are specified by the in-plane anisotropy. Above the critical thickness Lcr, the perpendicular anisotropy dominates, leading to the formation of the stripe domain structure that significantly complicates the magnetization reversal. The values of the critical thickness, parameters of the domain structure, and the saturation field obtained from the micromagnetic simulations are compared with the corresponding values calculated using analytical expressions derived by Murayama in the framework of the domain structures theory.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Solovev, P. N.; Соловьев, Платон Николаевич; Izotov, A. V.; Изотов, Андрей Викторович; Belyaev, B. A.; Беляев, Борис Афанасьевич; Boev, N. M.; Боев, Никита Михайлович
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18.

Micromagnetism in a planar system with a random magnetic anisotropy and two-dimensional magnetic correlations / S. V. Komogortsev [et al.] // J. Exp. Theor. Phys. - 2017. - Vol. 125, Is. 2. - P. 323-332, DOI 10.1134/S1063776117070196. - Cited References: 68. - This work was supported by the Russian Foundation for Basic Research, project no. 16-03-00256. . - ISSN 1063-7761
Кл.слова (ненормированные):
Anisotropy -- Crystallite size -- Defects -- Magnetic domains -- Magnetic materials -- Magnetism -- Magnetization -- Microstructure -- Stochastic systems -- Topology -- Dipole interaction -- Dipole interaction energy -- Magnetic correlation -- Magnetic microstructures -- Micromagnetic simulations -- Micromagnetic structure -- Random magnetic anisotropies -- Two-dimensional magnetization -- Magnetic anisotropy
Аннотация: The hysteresis loops and the micromagnetic structure of a ferromagnetic nanolayer with a randomly oriented local easy magnetization axis and two-dimensional magnetization correlations are studied using a micromagnetic simulation. The properties and the micromagnetic structure of the nanolayer are determined by the competition between the anisotropy and exchange energies and by the dipole–dipole interaction energy. The magnetic microstructure can be described as an ensemble of stochastic magnetic domains and topological magnetization defects. Dipole–dipole interaction suppresses the formation of topological magnetization defects. The topological defects in the magnetic microstructure can cause a sharper change in the coercive force with the crystallite size than that predicted by the random magnetic anisotropy model. © 2017, Pleiades Publishing, Inc.

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Публикация на русском языке Микромагнетизм в планарной системе со случайной магнитной анизотропией и двумерными магнитными корреляциями [Текст] / С. В. Комогорцев [и др.] // Журн. эксперим. и теор. физ. : Наука, 2017. - Т. 152 Вып. 2. - С. 379-390

Держатели документа:
Kirenskii Institute of Physics, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, Russian Federation
Reshetnev Siberian State Aerospace University, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Komogortsev, S. V.; Комогорцев, Сергей Викторович; Fel’k, V. A.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Shadrina, G. V.
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19.

Multiple nonlinear Bragg diffraction of femtosecond laser pulses in a χ(2) photonic lattice with hexagonal domains / A. M. Vyunishev [et al.] // Laser Phys. Lett. - 2018. - Vol. 15, Is. 4. - Ст. 045401, DOI 10.1088/1612-202X/aaa618. - Cited References:26. - The work was supported by the Russian Foundation for Basic Research through grant 15-02-03838. ISB, ARA and VYS acknowledge the support of the Government of the Russian Federation (Act 211, Agreement 02.A03.21.0006). . - ISSN 1612-2011. - ISSN 1612-202X

РУБ Optics + Physics, Applied
Рубрики:
RAMAN-NATH DIFFRACTION
STRUCTURED FUNDAMENTAL WAVE
2ND-HARMONIC
Кл.слова (ненормированные):
nonlinear Bragg diffraction -- nonlinear photonic lattice -- second harmonic -- generation -- femtosecond pulses
Аннотация: The frequency doubling of femtosecond laser pulses in a two-dimensional (2D) rectangular nonlinear photonic lattice with hexagonal domains is studied experimentally and theoretically. The broad fundamental spectrum enables frequency conversion under nonlinear Bragg diffraction for a series of transverse orders at a fixed longitudinal quasi-phase-matching order. The consistent nonstationary theory of the frequency doubling of femtosecond laser pulses is developed using the representation based on the reciprocal lattice of the structure. The calculated spatial distribution of the second-harmonic spectral intensity agrees well with the experimental data. The condition for multiple nonlinear Bragg diffraction in a 2D nonlinear photonic lattice is offered. The hexagonal shape of the domains contributes to multibeam second harmonic excitation. The maximum conversion efficiency for a series of transverse orders in the range 0.01%-0.03% is obtained.

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Держатели документа:
Kirensky Inst Phys, Fed Res Ctr KSC SB RAS, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia.
Siberian Fed Univ, Inst Nanotechnol Spect & Quantum Chem, Krasnoyarsk 660079, Russia.
Ural Fed Univ, Sch Nat Sci & Math, Ekaterinburg 620000, Russia.
Labfer Ltd, Ekaterinburg 620014, Russia.
Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia.
Moscow MV Lomonosov State Univ, Int Laser Ctr, Moscow 119992, Russia.

Доп.точки доступа:
Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Baturin, I. S.; Akhmatkhanov, A. R.; Shur, V. Ya; Chirkin, A. S.; Russian Foundation for Basic Research [15-02-03838]; Government of the Russian Federation (Act 211) [02.A03.21.0006]
}
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20.

Nonlinear optical characterization of spontaneously grown domain structures in SBO crystals / A. S. Aleksandrovsky [et al.] // Proceedings of SPIE - The International Society for Optical Engineering. - 2007. - Vol. 6729: ICONO 2007: Coherent and Nonlinear Optical Phenomena (28 May 2007 through 1 June 2007, Minsk, ) Conference code: 70618, DOI 10.1117/12.751986 . - ISBN 0277786X (ISSN); 081946886X (ISBN); 9780819468864 (ISBN)
Кл.слова (ненормированные):
Domains -- Nonlinear crystals -- Nonlinear diffraction -- Nonlinear generation -- Quasi phase matching -- Nonlinear crystals -- Nonlinear diffraction -- Nonlinear generation -- Quasi phase matching -- Computation theory -- Crystal growth -- Crystal structure -- Crystallography -- Diffraction -- Phase matching -- Nonlinear optics
Аннотация: Spontaneously grown partially ordered domain structures in SBO crystals are characterized via nonlinear diffraction. Domains have the form of sheets lying in cb plane with the domain walls oriented perpendicularly to the a crystallographic axis. The thickness of domains varies in quite wide range. The effective thickness of domains contributing to the nonlinear diffraction is determined from Fourier spectrum of inverse superlattice wave vectors to lie between 180 nm and 8 microns. General properties of spatial Fourier spectrum are reproducible from one growth procedure to another, however, details of spectrum noticeably vary. Enhancement factors for random QPM are calculated and found to be of order of several thousand in the near UV.

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Держатели документа:
L. V. Kirensky Institute of Physics, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Polytechnic Institute, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Kuzey, I. E. ; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Zaitsev, A. I.; Зайцев Александр Иванович; Zamkov, A. V.; Замков Анатолий Васильевич
}
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