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A METHOD FOR COMPUTING THE MICROWAVE ABSORPTION SPECTRUM IN A DISCRETE MODEL OF A FERROMAGNETIC [Text] / A. V. Izotov, B. A. Belyaev // Russ. Phys. J. - 2011. - Vol. 53, Is. 9. - P900-905, DOI 10.1007/s11182-011-9508-4. - Cited Reference Count: 8. - Гранты: The work was supported in part by the Federal Purpose-Oriented Program "Scientific and Scientific-Pedagogical Staff of the Innovative Russia" for the years 2009-2013, RAS Presidium Project No. 27, and by the State Contract No. 02.740.11.0568. - Финансирующая организация: Federal Purpose-Oriented Program; RAS Presidium [27]; State Contract [02.740.11.0568] . - FEB. - ISSN 1064-8887
Рубрики:

Кл.слова (ненормированные):
magnetization oscillation -- landau-lifshitz equation -- absorption spectrum -- absorption spectrum -- landau-lifshitz equation -- magnetization oscillation
Аннотация: An effective method based on linearization of the Landau-Lifshitz equation has been developed to determine normal magnetization oscillation modes in a discrete model of a condensed medium. The possibility to calculate microwave absorption spectra for ferromagnetic specimens of any shape is shown.

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Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia
Russian Acad Sci, LV Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk, Russia

Доп.точки доступа:
Izotov, A.V.; Belyaev, B. A.; Беляев, Борис Афанасьевич
}
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    A novel Cr3+-doped stannate far red phosphor for plant lighting: structure evolution, broad-narrow spectrum tuning and application prospect / S. J. Gai, C. Zhou, L. Peng [et al.] // Mater. Today Chem. - 2022. - Vol. 26. - Ст. 101107, DOI 10.1016/j.mtchem.2022.101107. - Cited References: 50. - The authors would like to gratefully acknowledge funds from the National Natural Science Foundation of China (Grant No. 51974123), the Distinguished Youth Foundation of Hunan Province (Grant No.2020JJ2018), the Key R & D projects in Hunan Province (2020WK2016, 2020SK2032, 2021SK2047, 2022NK2044), the Natural Science Foundation of Hunan Province, China (Grant No. 2021JJ40261), the Hunan High Level Talent Gathering Project (2019RS1077&2020RC5007), the Scientific Research Fund of Hunan Provincial Education Department (19C0903), the Natural Sciences Foundation of Hunan Agricultural University, China (Grant No. 19QN11), Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Resource Utilization Science Foundation (19KFXM12), Changsha Science and technology plan (KH2005114 and KH2201428), the Hunan Graduate Scientific Research Innovation Project (2022XC017) and the College Students' Innovative Training (S202110537012 and s202210537079x) . - ISSN 2468-5194
   Перевод заглавия: Новый станнатный инфракрасный люминофор, легированный Cr3+, для освещения растений: решение структуры, настройка широкого спектра и перспективы применения
Кл.слова (ненормированные):
Mg2SnO4: Cr3+ -- Chemical unit cosubstitution -- Emission tuning -- Local structural modification -- Plant growth LEDs
Аннотация: Chemical unit cosubstitution is an effective strategy to regulate the luminescence properties of phosphors, and it has attracted huge attention in the last few years. Following the design principles of the match of effective ion radius, atomic valence equilibrium and stoichiometric substitution, the local structure of crystal can be well customized, which is beneficial to develop high-performance luminescent materials. In this work, Mg2+-Sn4+ sites were cosubstituted by Zn2+-Ti4+ ion pairs in Mg2SnO4: Cr3+, respectively, and the emission spectra was successfully serially tuned from broad-band to narrow-band along with a unique variation trend of blue shift first and then slightly red shift. The photoluminescence excitation (PLE), photoluminescence (PL) spectra, lifetime decay, Raman spectra and electron paramagnetic resonance (EPR) were used to analyze the mechanism of luminescence tuning. Based on the manipulation of local structure, the as-observed distinct luminescence tuning can be well understood by the crystal field theory, nephelauxetic effect and changed Cr3+ capacity in this phosphor. Moreover, the adjusted narrow-band far-red emission spectra peak at 732 nm, matching the characteristic absorption of plant phytochrome PFR, has broad application prospects in the field of plant growth lighting. In addition, light-regulated dwarf potted tomato experiments were carried out to verify the application of far-red light in plant growth.

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Держатели документа:
College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
School of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, China
Hunan Optical Agriculture Engineering Technology Research Center, Changsha, 410128, China
Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk660036, Russian Federation

Доп.точки доступа:
Gai, S. J.; Zhou, C.; Peng, L.; Wu, M. H.; Gao, P. X.; Su, L. J.; Molokeev, M. S.; Молокеев, Максим Сергеевич; Zhou, Z.; Xia, M.
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AIZENBERG, L. A.
CALCULATION EXPERIMENT ON THE HIGH-RESOLUTION OF PHYSICAL DEVICES BY THE EXTRAPOLATION OF THE FOURIER SPECTRUM OF UNIDIMENSIONAL FINITE SIGNALS / L. A. AIZENBERG, B. A. KRAVTSOV // Pisma Zhurnal Tek. Fiz. - 1987. - Vol. 13, Is. 19. - P. 1193-1197. - Cited References: 6 . - ISSN 0320-0116

РУБ Physics, Applied

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Доп.точки доступа:
KRAVTSOV, B. A.
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Aksenov, S. V.
Strong Coulomb interactions in the problem of Majorana modes in a wire of the nontrivial topological class BDI / S. V. Aksenov, A. O. Zlotnikov, M. S. Shustin // Phys. Rev. B. - 2020. - Vol. 101, Is. 12. - Ст. 125431, DOI 10.1103/PhysRevB.101.125431. - Cited References: 60. - We acknowledge fruitful discussions with V. V. Valkov and V. A. Mitskan. The reported study was funded by the RAS Presidium programs for fundamental research Nos. 12 and 32, Russian Foundation for Basic Research (Projects No. 18-32-00443 and No. 19-02-00348), Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science to the research project: "Coulomb interactions in the problem of Majorana modes in low-dimensional systems with nontrivial topology" (Grant No. 19-42-240011). S.V.A. and A.O.Z. are grateful to the Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools, Projects No. MK-1641.2020.2 and No. MK-3594.2018.2. S.V.A. acknowledges the support from the Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS" (Grant No. 18-46-007). . - ISSN 2469-9950. - ISSN 2469-9969

РУБ Materials Science, Multidisciplinary + Physics, Applied + Physics, Condensed Matter
Рубрики:
QUANTUM
   POLARIZATION
   TRANSITION
   FERMIONS
   SPECTRUM
   STATE
Аннотация: In this study, the problem of strong Coulomb interactions in topological superconducting wire is analyzed by means of the density-matrix-renormalization-group (DMRG) approach. To analyze properties of edge states in the BDI-class structure, a quantity called Majorana polarization is used. From its dependence on wire length and an entanglement-spectrum degeneracy, topological phase diagrams are obtained. The DMRG calculations for the Shubin-Vonsovsky-type model of the wire show the transformation of phases with Majorana single and double modes (MSMs and MDMs, respectively) under the increase of onsite and intersite correlations. In particular, we demonstrate different scenarios including the possibilities of both induction and suppression of the MSMs and MDMs. It is shown that in the strongly correlated regime, the contributions of single-particle excitations to the Majorana-type states significantly decrease at low magnetic fxields. Moreover, the t-J*-V model is derived allowing to study the effective interactions and improve the DMRG numerics. It is found out that in the limiting case of the effective Hamiltonian with infinitely strong onsite repulsion, t model, the topological phases are destroyed. Finally, the ways to probe the MSMs and MDMs via the features of caloric functions are discussed.

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

Доп.точки доступа:
Zlotnikov, A. O.; Злотников, Антон Олегович; Shustin, M. S.; Шустин, Максим Сергеевич; Аксенов, Сергей Владимирович; RAS Presidium programs for fundamental research [32, 12]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-32-00443, 19-02-00348]; Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science [19-42-240011]; Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific SchoolsLeading Scientific Schools Program [MK-1641.2020.2, MK-3594.2018.2]; Foundation for the Advancement of Theoretical Physics and Mathematics "BASIS" [18-46-007]
}
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    Angular tuning of defect modes spectrum in the one-dimensional photonic crystal with liquid-crystal layer / V. G. Arkhipkin [et al.] // Eur. Phys. J. E. - 2007. - Vol. 24, Is. 3. - P297-302, DOI 10.1140/epje/i2007-10239-7. - Cited Reference Count: 28 . - NOV. - ISSN 1292-8941
Рубрики:
PERIODIC STRUCTURE
   REFRACTIVE-INDEX
   ENHANCEMENT
   LIGHT
   LASER
Кл.слова (ненормированные):
42.25.Bs Wave propagation, transmission and absorption -- 42.70.Df Liquid crystals -- 42.70.Qs Photonic bandgap materials -- Angles of incidence -- Angular tuning -- Defect modes -- Electric polarization -- Photonic bandgap materials -- Radiation losses -- Absorption -- Defects -- Light polarization -- Liquid crystals -- One dimensional -- Phase shift -- Wave propagation -- Photonic crystals
Аннотация: A one-dimensional ZrO2/SiO2 photonic crystal with a 4-n -pentyl-4'-cyanobiphenyl (5CB) nematic defect layer was used to investigate the transmission spectra of light polarized parallel and perpendicular to the liquid-crystal director at different angles of incidence. The spectra of the photonic crystal were shown to split into four polarized components T-ij at oblique incidence. When the incident angle increased, the bandgap edges and the defect modes shifted towards short wavelengths, while the amplitudes of the defect modes increased for the transverse magnetic polarization and decreased for the transverse electric polarization. The observed discrepancy between the defect mode amplitudes in the center and near the edges of the photonic bandgap was found to be related to the radiation losses inside the defect layer of a non-ideal photonic crystal. The simulated transmission spectra obtained using recurrence relations and taking into account the decay of defect modes are in good agreement with the experimental data.

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Держатели документа:
SB RAS, LV Kirensky Phys Inst, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Gunyakov, V. A.; Гуняков, Владимир Алексеевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Shabanov, V. F.; Шабанов, Василий Филиппович
}
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Aplesnin, S. S.
Two-particle spin-singlet excitations in coupled spin-1/2 antiferromagnetic alternating chains / S. S. Aplesnin // J. Phys.: Condens. Matter. - 2001. - Vol. 13, Is. 14. - P. 3403-3410, DOI 10.1088/0953-8984/13/14/313. - Cited References: 14 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
MAGNETIC-PROPERTIES
   LIGHT-SCATTERING
   CUGEO3
   S=1/2
Кл.слова (ненормированные):
Antiferromagnetic materials -- Approximation theory -- Chemical bonds -- Electron transport properties -- Monte Carlo methods -- Particles (particulate matter) -- Quantum theory -- Thermal effects -- Antiferromagnetic alternating chains -- Excitation spectrum -- Interchain exchange -- Mean-field approximation -- Quantum Monte Carlo method -- Singlet gaps -- Spin-singlet excitations -- Energy gap
Аннотация: The spectrum of the two-particle spin-singlet (DeltaS(z) = 0, +/-1) excitations of a weakly coupled antiferromagnetic spin-1/2 alternating (J(1) +/- delta) chain is calculated using a mean-field approximation for the interchain exchange (J(2)) by the quantum Monte Carlo method. The bandwidth change of these excitations, the mass gaps in the singlet-singlet excitation spectrum, the top boundaries of the bands and the velocities of these excitations are estimated as functions of the alternating bond delta. The temperatures at which the singlet gaps close are determined.

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Держатели документа:
Russian Acad Sci, LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
L V Kirenskii Institute of Physics, Siberian Br. Russian Acad. of Sci., Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Аплеснин, Сергей Степанович
}
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Arkhipkin, V. G.
Effect of electromagnatically induced transparency on spectrum of defect modes of photonic crystal - art. no. 67292H / V. G. Arkhipkin, S. A. Myslivets, I. V. Timofeev ; ed.: VN Belyi, KN Drabovich, KN Drabovich ; International Conference on Coherent and Nonlinear Optics (2007) // ICONO 2007: Coherent and nonlinear optical phenomena. Ser. proceedings of the society of photo-optical instrumentation engineers (SPIE) / International Conference on Coherent and Nonlinear Optics (2007) : SPIE-Int. Soc. Optical Engineering, 2007. - Vol. 6729. - P. H7292-H7292, DOI 10.1117/12.751966. - Cited References: 33 . - ISBN 0277-786X. - ISBN 978-0-8194-6886-4

РУБ Optics
Рубрики:
ELECTROMAGNETICALLY INDUCED TRANSPARENCY
   NONLINEAR OPTICS
   COHERENT MEDIA
   LIGHT
   MICROCAVITIES
   PULSES
Кл.слова (ненормированные):
photonic crystal -- defect mode -- photonic band gap -- localized mode -- electromagnetically induced transparency -- Defect mode -- Electromagnetically induced transparency -- Localized mode -- Photonic band gap -- Photonic crystal -- Crystal defects -- Dispersion (waves) -- Electromagnetic field effects -- Transparency -- Photonic crystals
Аннотация: The effect of electromagnetically induced transparency on the spectrum of defect modes of one-dimensional photonic crystal is discussed theoretically. Narrowing of defect mode linewidth is predicted due to nonabsorbing highly dispersive medium in defect layer.

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Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Timofeev, I. V.; Тимофеев, Иван Владимирович; Belyi, VN \ed.\; Drabovich, K. N. \ed.\; Архипкин, Василий Григорьевич; International Conference on Coherent and Nonlinear Optics(2007)
}
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Arkhipkin, V. G.
Effect of electromagnetically induced transparency on the spectrum of defect modes in a one-dimensional photonic crystal / V. G. Arkhipkin, S. A. Myslivets // Quantum Electronics. - 2009. - Vol. 39, Is. 2. - P. 157-162, DOI 10.1070/QE2009v039n02ABEH013813 . - ISSN 1063-7818
Кл.слова (ненормированные):
Electromagnetically induced trans- parency -- Photonic crystals -- Defect layers -- Defect mode -- Electromagnetically induced trans- parency -- One dimensional photonic crystal -- Spatial in-homogeneity -- Spatial overlap -- Transmission spectrums -- Crystal atomic structure -- Defects -- Silicon on insulator technology -- Transparency -- Photonic crystals
Аннотация: We studied the transmission spectrum of a one-dimensional photonic crystal containing a defect layer in which electromagnetically induced transparency is possible. The analysis is performed taking into account the spatial inhomogeneity of interacting fields in the photonic crystal. It is found that the transmission spectrum of such a photonic crystal depends on the spatial overlap of defect modes excited by probe and control radiations. It is shown that electromagnetically induced transparency can result in a considerable narrowing of the defect mode spectrum. В© 2009 Kvantovaya Elektronika and Turpion Ltd.

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Держатели документа:
L.V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Academgorodok, 660036, Krasnoyarsk, Russian Federation
Siberian Federal University, prosp. Svobodnyi 79, 660041 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Myslivets, S. A.; Мысливец, Сергей Александрович; Архипкин, Василий Григорьевич
}
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Automated measuring unit for analysis of thin magnetic film ferroresonance spectrum / A. V. Burmitskikh [et al.] // International Siberian Conference on Control and Communications, SIBCON 2019 : Proceedings : IEEE, 2019. - Ст. 8729594, DOI 10.1109/SIBCON.2019.8729594. - Cited References: 6
Кл.слова (ненормированные):
Ferroresonance -- Magnetic films -- Magnetic sensors -- Magnetometers -- Permeability measurement
Аннотация: This paper considers hardware and software for automated analysis of thin magnetic film ferroresonance spectrum to determine the rate of growth and decrease in ferroresonance spectrum (conversion factor parameter). The measuring element of automated system is the strip line which is short-circuited. The measuring unit is used to study Ni 80 Fe 20 permalloy films, with thickness of more than 300 Å. Conversion factor, magnetic permeability μ, uniaxial magnetic anisotropy, ferromagnetic spectrum resonance line width, saturation magnetization are analyzed from 50 MHz to 2 GHz frequency range. The magnetic films are used to design frequency selective filters, phase shifters and weak-field magnetic sensors. The thin magnetic film sensors are high sensitive magnetometers, with wide frequency range, low dimensions and weight [1]. © 2019 IEEE.

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Держатели документа:
Laboratory of Electrodynamics and Microwave Electronics, Kirensky Institute of Physics, Krasnoyarsk, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Burmitskikh, A. V.; Бурмитских, Антон Владимирович; Boev, N. M.; Боев, Никита Михайлович; Izotov, A. V.; Andyuseva, V. G.; International Siberian Conference on Control and Communications(14 ; 2019 ; April 18-20 ; Tomsk)
}
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10.

Avdeeva, A. Yu.
Splitting of a Tamm plasmon polariton at the interface between a metal and a resonant nanocomposite layer conjugated with a photonic crystal / A. Y. Avdeeva, S. Y. Vetrov, I. V. Timofeev // J. Opt. Soc. Am. B. - 2021. - Vol. 38, Is. 6. - P. 1792-1797, DOI 10.1364/JOSAB.420490. - Cited References: 36. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 19-42-240004 and by Russian Foundation for Basic Research, project No. 19-52-52006. The authors are thankful to Pavel S. Pankin for valuable discussions and comments . - ISSN 0740-3224
Кл.слова (ненормированные):
Dispersion equations -- Finite structures -- Frequency approach -- Nano-composite layers -- Plasmon-polaritons -- Reflectance spectrum -- Resonance frequencies -- Transparent matrix -- Metallic matrix composites
Аннотация: Splitting of a Tamm plasmon polariton at the interface between a metal and a nanocomposite layer conjugated with a photonic crystal (Bragg mirror) has been theoretically investigated. The splitting can be implemented when the Tamm plasmon polariton frequency approaches the resonance frequency of the nanocomposite, which consists of metallic nanoballs dispersed in a transparent matrix. The reflectance spectrum of the p-polarized waves at the normal incidence of light has been calculated. It has been established that the Tamm plasmon polariton splitting significantly depends on the concentration of nanoballs in the nanocomposite layer and its thickness. The solution of the dispersion equation derived for a sample with semi-infinite mirrors has been compared with the spectra obtained for a finite structure by the transfer matrix method.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Авдеева, Анастасия Юрьевна
}
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11.

Aver'yanov, E. M.
Change in the spectrum of the polarizability density of molecules at the smectic-A - crystal-B phase transition / E. M. Aver'yanov // 14th Eur. Conf. Liq. Cryst. (ECLC) : conf. programme / чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст. P4. - Библиогр.: . - Poster

Материалы конференции,
Материалы конференции

Доп.точки доступа:
Zyryanov, V. Ya. \чл. нац. орг. и прогр. ком.\; Зырянов, Виктор Яковлевич; Аверьянов, Евгений Михайлович; European Conference on Liquid Crystals(14 ; 2017 ; June ; 25-30 ; Moscow); Московский государственный университет им. М.В. Ломоносова
}
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12.

Aver'yanov, E. M.
Manifestations of the higher moments of the orientation distribution function of molecules in the spectral properties of an impurity nematic / E. M. Aver'yanov, V. G. Rumyantsev // J. Exp. Theor. Phys. - 2004. - Vol. 98, Is. 6. - P. 1146-1151, DOI 10.1134/1.1777627. - Cited References: 15 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
LIQUID-CRYSTAL
   SCATTERING
   PHASES
   MATRIX
   ORDER
   DYES
Кл.слова (ненормированные):
Absorption -- Band structure -- Impurities -- Molecular dynamics -- Polarization -- Spectrum analysis -- Distribution function -- Local field parameters -- Splitting -- Temperature dependence -- Nematic liquid crystals
Аннотация: The polarized electronic absorption spectra, orientation ordering, and the special local field features were studied for push-pull linear dye molecules with strong donor-acceptor electronic conjugation of terminal fragments in the matrix of a nematic liquid crystal. The temperature-induced inversion of the sign of the splitting of polarized impurity absorption bands was observed. This effect was shown to be caused by the statistical character of orientation ordering of impurity molecules and manifestation of the higher moments of the orientation distribution function. The dependence of local field parameters (Lorentz tensor components) of impurity molecules on their orientation ordering was established. This dependence was used to reproduce the temperature dependence of the orientation order parameter of the matrix. (C) 2004 MAIK "Nauka / Interperiodica".

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Res Inst Organ Intermediates & Dyes, Dolgoprudnyi 141700, Moscow Oblast, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Research Institute of Organic Intermediates and Dyes, Dolgoprudnyi, Moscow oblast, 141700, Russian Federation

Доп.точки доступа:
Rumyantsev, V. G.; Аверьянов, Евгений Михайлович
}
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13.

AVERYANOV, E. M.
POLARIZED LUMINESCENCE SPECTRUM OF IMPURITY LIQUID-CRYSTAL - THE DEGENERATION LIFTED AND RENEWED BY RELAXATION / E. M. AVERYANOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1993. - Vol. 103, Is. 6. - P. 2018-2038. - Cited References: 45 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
RESOLVED FLUORESCENCE DEPOLARIZATION
   UNIAXIAL MOLECULAR SAMPLES
   NEMATIC ORDER PARAMETERS
   EXCITED-STATES
   SPECTROSCOPY
   MEMBRANES
   FLUOROPHORES
   ORIENTATION
   TRANSITION
   DYES
Аннотация: The general molecular-statistical approach is proposed for the analysis or the polarized luminescence spectrum for impurity molecule of an arbitrary symmetry in the nematic liquid crystal matrix. On the particular example of uniaxial molecules the influence of features of the molecular electron structure, orientational statistics, molecular dynamics, and features of the anisotropic intermolecular coupling upon the positions of maxima v(if)(t) of impurity fluorescence polarized bands J(ij)(t) is studied. For the first time it is shown that all these factors significantly affect the degree of spectrum v(ij)(t) degeneration. For t not-equal 0, relaxation of excited impurity molecule subsystem toward the orientational distribution lifts a partial degeneration of spectrum v(ij), occuring at t not-equal 0, and renews partial or total degeneration of spectrum v(ij) in the limit t = infinity. In the lack of the spectrum v(ij) degeneration for t = 0 the relaxation may restore partial degeneration for t not-equal 0 as a function of the features of electron structure of molecules. The results of work explain the familiar experimental data on the number of independent component v(ij) and relation between them, on dependence of v(ij) upon the order of matrix and impurity subsystem, on the mutual relation in the positions of impurity band polarized component in the absorption and fluorescence spectra.

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14.

Averyanov, E. M.
Splitting inversion of nematic spectrum induced by local field anisotropy / E. M. Averyanov // Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 6. - P. 1867-1869. - Cited References: 5 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Аверьянов, Евгений Михайлович
}
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15.

Averyanov, E. M.
Splitting of polarized impurity fluorescence bands in the steady-state spectrum of an isotropic solution / E. M. Averyanov // JETP Letters. - 1994. - Vol. 59, Is. 1. - P. 23-26. - Cited References: 12 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
RELAXATION
Аннотация: A difference is predicted between the peaks, nu(VV) and nu(VH), Of the polarized components J(VV)(nu) and J(VH)(nu) in the steady-state spectrum of impurity fluorescence in an isotropic solution. This difference would result from a temporal correlation between an orientational Brownian diffusion of excited fluorescing molecules and a structural relaxation of the surrounding matrix molecules.

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Доп.точки доступа:
Аверьянов, Евгений МихайловичAver'yanov
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16.

AVERYANOV, E. M.
STATIONARY SPECTRUM OF ADMIXED LIQUID-CRYSTAL POLARIZED FLUORESCENCE / E. M. AVERYANOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1994. - Vol. 106, Is. 3. - P. 767-779. - Cited References: 29 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
LOCAL FIELD
   SPECTROSCOPY
   PARAMETERS
   DYES

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17.

Belyaev, B. A.
Micromagnetic modeling of static and dynamic properties of ferromagnetic/antiferromagnetic bilayer / B. A. Belyaev, A. V. Zotov, P. N. Solovev // Int. Sib. Conf. on Control and Communicat. : Proc. - 2013. - Conference code: 102462. Cт. 6693573, DOI 10.1109/SIBCON.2013.6693573. - Cited References: 13 . - ISSN 978-1-479

РУБ Engineering, Electrical & Electronic + Telecommunications
Рубрики:
EXCHANGE-BIAS
DEPENDENCE
Кл.слова (ненормированные):
absorption spectrum -- exchange bias -- micromagnetic modeling
Аннотация: Static and dynamic properties of ferromagnetic (F) antiferromagnetic (AF) bilayer have been studied by using micromagnetic calculations. The reasonable value of exchange bias field has been obtained. In addition, we have shown the strong dependence of a resonance frequency F/AF structure on an angle between an external magnetic field and an easy axis of the bilayer.

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Доп.точки доступа:
Zotov, A. V.; Solovev, P. N.; Беляев, Борис Афанасьевич; International Siberian Conference on Control and Communications(10 ; 2013 ; Sept. 12-13 ; Krasnoyarsk)
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18.

Berggren, K. F.
Crossover from regular to irregular behavior in current flow through open billiards / K. F. Berggren, A. F. Sadreev, A. A. Starikov // Phys. Rev. E. - 2002. - Vol. 66, Is. 1. - Ст. 16218, DOI 10.1103/PhysRevE.66.016218. - Cited References: 36 . - ISSN 1539-3755

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
PHASE SINGULARITIES
   NODAL POINTS
   WAVE-FIELDS
   QUANTUM
   STREAMLINES
   CONDUCTANCE
   VORTICES
   CHAOS
Кл.слова (ненормированные):
Eigenvalues and eigenfunctions -- Mathematical models -- Networks (circuits) -- Random processes -- Resonance -- Signal processing -- Spurious signal noise -- Bursting time series -- Coherence resonance -- Power spectrum -- Stochastic resonance -- Chaos theory
Аннотация: We discuss signatures of quantum chaos in terms of distributions of nodal points, saddle points, and streamlines for coherent electron transport through two-dimensional billiards, which are either nominally integrable or chaotic. As typical examples of the two cases we select rectangular and Sinai billiards. We have numerically evaluted distribution functions for nearest distances between nodal points and found that there is a generic form for open chaotic billiards through which a net current is passed. We have also evaluated the distribution functions for nodal points with specific vorticity (winding number) as well as for saddle points. The distributions may be used as signatures of quantum chaos in open systems. All distributions are well reproduced using random complex linear combinations of nearly monochromatic states in nominally closed billiards. In the case of rectangular billiards with simple sharp-cornered leads the distributions have characteristic features related to order among the nodal points. A flaring or rounding of the contact regions may, however, induce a crossover to nodal point distributions and current flow typical for quantum chaos. For an irregular arrangement of nodal points, as for example in the Sinai billiard, the quantum flow lines become very complex and volatile, recalling chaos among classical trajectories. Similarities with percolation are pointed out.

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Держатели документа:
Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Dept. of Phys. and Msrmt. Technology, Linkoping University, S-581 83 Linkoping, Sweden
Kirensky Institute of Physics, 660036, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Starikov, A. A.
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19.

Berman, G. P.
On the spectrum of the system of interacting quantum non-linear resonances / G. P. Berman, G. M. Zaslavsky, A. R. Kolovsky // Phys. Lett. A. - 1982. - Vol. 87, Is. 4. - P. 152-156, DOI 10.1016/0375-9601(82)90099-8. - Cited References: 10 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Zaslavsky, G. M.; Заславский, Георгий Моисеевич; Kolovsky, A. R.; Коловский, Андрей Радиевич; Берман, Геннадий Петрович
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20.

Berman, G. P.
Structure and stability of the quasi-energy spectrum of 2 interacting quantum non-linear resonances / G. P. Berman, A. R. Kolovsky // Phys. Lett. A. - 1983. - Vol. 95, Is. 1. - P. 15-18, DOI 10.1016/0375-9601(83)90768-5. - Cited References: 5 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Kolovsky, A. R.; Коловский, Андрей Радиевич; Берман, Геннадий Петрович
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