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Alekseev, K. N.
Direct-current generation due to wave mixing in semiconductors / K. N. Alekseev, M. V. Erementchouk, F. V. Kusmartsev // Europhys. Lett. - 1999. - Vol. 47, Is. 5. - P. 595-600, DOI 10.1209/epl/i1999-00430-0. - Cited References: 34 . - ISSN 0295-5075

РУБ Physics, Multidisciplinary
Рубрики:
BLOCH OSCILLATOR
   SUPERLATTICES
   PHOTOCURRENT
   TRANSPORT
   FREQUENCY
   FIELD
   RECTIFIERS
   EMISSION
   CHAOS
   GAAS
Аннотация: We describe an effect of the generation of direct current which may arise in semiconductors or semiconductor microstructures due to a mixing of coherent electromagnetic radiations of commensurate frequencies. The effect is, in essence, due to a nonparabolicity of the electron energy bands and is stronger in systems where this nonparabolicity is greater. We have made exact calculations in the framework of the Kane model, applicable to narrow-gap semiconductors and the tight-binding model which we employ for a description of a semiconductor superlattice.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Loughborough Univ Technol, Sch Math & Phys Sci, Loughborough LE11 3TU, Leics, England
Russian Acad Sci, LD Landau Theoret Phys Inst, Chernogolovka 142432, Russia
ИФ СО РАН
Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Sch. of Math. and Physical Sciences, Loughborough University, Loughborough LE11 3TU, United Kingdom
Landau Inst. for Theoretical Physics, Russian Academy of Sciences, Moscow 142432, Russian Federation

Доп.точки доступа:
Erementchouk, M. V.; Kusmartsev, F. V.
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Alekseev, K. N.
Optical chaos in nonlinear photonic crystals / K. N. Alekseev, A. V. Ponomarev // JETP Letters. - 2002. - Vol. 75, Is. 4. - P. 174-178, DOI 10.1134/1.1475717. - Cited References: 34 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
POLED LITHIUM-NIOBATE
   3RD-HARMONIC GENERATION
   WAVE-GUIDES
   SUPERLATTICES
   CHI((2))
Аннотация: We examine the spatial evolution of lightwaves in a nonlinear photonic crystal with a quadratic nonlinearity, when a second harmonic and a sum-frequency generation are simultaneously quasi-phase-matched. We find the conditions for a transition to Hamiltonian chaos for different amplitudes of lightwaves at the crystal boundary. (C) 2002 MAIK "Nauka/ Interperiodica".

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Держатели документа:
Univ Oulu, Dept Phys Sci, FIN-90014 Oulu, Finland
Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
Russian Acad Sci, LV Kirensky Phys Inst, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Dept Phys, Krasnoyarsk 660041, Russia
ИФ СО РАН
Max-Planck-Inst. Physik Komplexer S., D-01187 Dresden, Germany
Theor. of Nonlinear Processes Lab., Kirensky Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Department of Physics, Krasnoyarsk State University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Ponomarev, A. V.
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    High-frequency susceptibility of a multilayered ferromagnetic system with two-dimensional inhomogeneities / Y. I. Mankov, D. S. Tsikalov // Phys. Solid State. - 2010. - Vol. 52, Is. 3. - P544-553, DOI 10.1134/S1063783410030157. - Cited Reference Count: 24. - Гранты: This study was supported in part by the Council on Grants from the President of the Russian Federation for the State Support of Scientific Investigations performed by the Leading Scientific Schools (grant no. 3818.2008.3), the Presidium of the Russian Academy of Sciences (Program no. 27.1), and the Ministry of Education and Science within the framework of the Federal Program (State Contract no. 2.740.11.0220). - Финансирующая организация: Russian Federation [3818.2008.3]; Presidium of the Russian Academy of Sciences [27.1]; Ministry of Education and Science [2.740.11.0220] . - MAR. - ISSN 1063-7834
   Перевод заглавия: ВЫСОКОЧАСТОТНАЯ ВОСПРИИМЧИВОСТЬ МНОГОСЛОЙНОЙ ФЕРРОМАГНИТНОЙ СИСТЕМЫ С ДВУМЕРНЫМИ НЕОДНОРОДНОСТЯМИ
Рубрики:
SPIN-WAVE SUSCEPTIBILITY
   SPECTRUM
   SUPERLATTICES
   INTERFACES
Аннотация: This paper reports on the results of the investigation of the high-frequency susceptibility of a layered ferromagnetic structure in which, apart from a periodic change in the magnetic anisotropy parameter from layer to layer, this parameter varies along layers according to a random law (the superlattice with two-dimensional phase inhomogeneities). The evolution of the frequency dependence of the imaginary part of the averaged Green's function in the range of the energy gap (band gap) in the spectrum of waves propagating along the superlattice axis due to the change in the relative root-mean-square fluctuations of the phase gamma 2 has been studied at the boundaries of the odd Brillouin zones. It has been found that, for all odd Brillouin zones, the imaginary part of the Green's function exhibits a universal behavior: the peak corresponding to the edge of the band gap with a lower frequency remains unchanged, and the peak corresponding to the edge of the band gap with a higher frequency is smoothed with an increase in the quantity gamma(2). These effects, which were initially revealed at the boundary of the first Brillouin zone of the sinusoidal superlattice, have been explained, as before, by the specific features of the energy conservation laws for the incident and scattered waves in the lattice with two-dimensional inhomogeneities. It has been demonstrated that an increase in the Brillouin zone number leads to a decrease in the value of gamma(2) at which the peak at the edge of the band gap with a higher frequency disappears.

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Оригинал на русском языке Высокочастотная восприимчивость многослойной ферромагнитной системы с двумерными неоднородностями [Текст] / Ю. И. Маньков, Д. С. Цикалов // Физика твердого тела. - Санкт-Петербург : Федеральное государственное унитарное предприятие "Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Российской академии наук "Издательство "Наука", 2010. - Т. 52 № 3. - С. 505-513

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

Доп.точки доступа:
Man'kov, Yu. I.; Маньков, Юрий Иннокентьевич; Tsikalov, D. S.; Цикалов, Денис Сергеевич
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Ignatchenko, V. A.
Effects of one- and three-dimensional inhomogeneities on the wave spectrum of multilayers with finite interface thicknesses / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 2002. - Vol. 65, Is. 2. - Ст. 24207, DOI 10.1103/PhysRevB.65.024207. - Cited References: 24 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
PERIODIC MULTILAYERS
   SPIN-WAVES
   LOCALIZATION
   SUPERLATTICES
   SYSTEMS
   DISORDER
   AVERAGE
   MEDIA
Аннотация: To describe a partially randomized multilayer structure with arbitrary thicknesses of the interfaces between layers, we introduce a model in which the dependence of a material parameter along the axis of such a Superlattice is described by a Jacobian elliptic sine function with a random spatial modulation of its period. Both one- and three-dimensional inhomogeneities of the period are considered. We develop the correlation function for this model, and investigate the dispersion law and damping of averaged waves in this superlattice. The dependencies of the widths of the gaps in the spectrum and the damping at the boundaries of all odd Brillouin zones, on the thicknesses of the interfaces, and on the dimensionality, intensity, and correlation wave number of the inhomogeneities are found. It is shown that experimental investigations of the widths of the gaps and damping for several Brillouin zones could permit, in principle, determining all parameters of the superlattice as well as the parameters of the inhomogeneities from these spectral characteristics.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
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Kolovsky, A. R.
Hall conductivity beyond the linear response regime / A. R. Kolovsky // Europhys. Lett. - 2011. - Vol. 96, Is. 5. - Ст. 50002, DOI 10.1209/0295-5075/96/50002. - Cited References: 24. - This work was supported by Russian Foundation for Basic Research, grant RFBR-10-02-00171-a. . - ISSN 0295-5075

РУБ Physics, Multidisciplinary
Рубрики:
MAGNETIC-FIELDS
   ANTIDOT ARRAYS
   NEUTRAL ATOMS
   SUPERLATTICES
   MAGNETORESISTANCE
   TRANSPORT
   ELECTRONS
Аннотация: This paper introduces a semi-analytical method for calculating the Hall conductivity in the single-band approximation. The method goes beyond the linear response theory and thus, it formally imposes no limitation on the electric-field magnitude. It is shown that, when the Bloch frequency exceeds the cyclotron frequency, the Hall current decreases with increasing electric field. The obtained results can be directly applied to the cold Bose atoms in a 2D optical lattice, where the single-band approximation is well justified. Copyright (C) EPLA, 2011

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Держатели документа:
[Kolovsky, A. R.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Kolovsky, A. R.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, 660041 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Коловский, Андрей Радиевич
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Kolovsky, A. R.
Interplay between Anderson and Stark Localization in 2D Lattices / A. R. Kolovsky // Phys. Rev. Lett. - 2008. - Vol. 101, Is. 19. - Ст. 190602, DOI 10.1103/PhysRevLett.101.190602. - Cited References: 20. - The author gratefully acknowledges discussions with X. Zotos and financial support under the Project No. FP6032980-2 within the 6th Framework Programme. . - ISSN 0031-9007

РУБ Physics, Multidisciplinary
Рубрики:
BOSE-EINSTEIN CONDENSATE
   CHARACTERISTIC VECTORS
   INFINITE DIMENSIONS
   BLOCH OSCILLATIONS
   BORDERED MATRICES
   EIGENFUNCTIONS
   SUPERLATTICES
   AC
Аннотация: This Letter studies the dynamics of a quantum particle in 2D lattices with on-site disorder in the presence of a static field. It is shown that the particle is localized along the field direction, while in the orthogonal direction to the field it shows diffusive dynamics for algebraically large times. For weak disorder an analytical expression for the diffusion coefficient is obtained by mapping the problem to a band random matrix. This expression is confirmed by numerical simulations of the particle's dynamics, which also indicate the existence of a universal equation for the diffusion coefficient, valid for an arbitrary disorder strength.

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Держатели документа:
[Kolovsky, A. R.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Kolovsky, A. R.] Siberian Fed Univ, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Коловский, Андрей Радиевич
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Magnetic properties and nonmagnetic phases formation in (Fe/Si)(n) films / S. N. Varnakov [et al.] // J. Appl. Phys. - 2008. - Vol. 104, Is. 9. - Ст. 94703, DOI 10.1063/1.3005973. - Cited References: 23. - This work was supported by the Russian Academy of Science program "Spintronics," the complex integration project of the Siberian Branch of the Russian Academy of Science. 3.5, the Russian Foundation for Basic Research (Grant No. 07-03-00320), the "Ramon y Cajal" program, and Project No. MAT 2005/01272 of the Spanish Ministry of Education and Science. . - ISSN 0021-8979

РУБ Physics, Applied
Рубрики:
FE/SI/FE TRILAYER FILMS
   GIANT MAGNETORESISTANCE
   ULTRAHIGH-VACUUM
   SUPERLATTICES
   MULTILAYERS
   EXCHANGE
Кл.слова (ненормированные):
Activation energy -- Integral equations -- Magnetic properties -- Magnetization -- Magnets -- Multilayers -- Rate constants -- Silicon -- Thermal evaporation -- Vacuum -- Vacuum evaporation -- Fe layers -- High temperatures -- Interface layers -- Irreversible behaviors -- Kinetic equations -- N films -- Nonmagnetic -- Nonmagnetic phases -- Prefactor -- Quantitative analysis -- Rate equations -- Synthetic procedures -- Temperature dependences -- Ultrahigh-vacuum systems -- Phase interfaces
Аннотация: The magnetization of Fe/Si multilayers, grown by thermal evaporation in an ultrahigh vacuum system, was investigated at high temperatures. Magnetization and its temperature dependence up to a high temperature of 800 K depend on individual Fe layer thickness d(Fe). This dependence is the result of the formation of an Fe-Si interface layer (nonmagnetic phase) during the synthetic procedure. The fraction of this Fe-Si nonmagnetic phase is estimated versus dFe. At temperatures higher than 400 K an irreversible decrease in the magnetization occurs. A quantitative analysis of this irreversible behavior is proposed in terms of an exponential diffusion-like kinetic equation for the reaction that produces the Fe-Si nonmagnetic phase. The coefficients of the rate equation are the activation energy E(a) and the prefactor D(0), which have been determined for different d(Fe). (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3005973]

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Держатели документа:
[Varnakov, S. N.
Komogortsev, S. V.
Ovchinnikov, S. G.] Russian Acad Sci, Kirensky Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia
[Varnakov, S. N.] Siberian Aerosp Univ, Krasnoyarsk 660014, Russia
[Bartolome, J.] Univ Zaragoza, Inst Ciencia Mat Aragon, Dept Fis Mat Condensada, CSIC, E-50009 Zaragoza, Spain
[Sese, J.] Univ Zaragoza, Inst Nanociencia Aragon, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Siberian Aerospace University, pr. im. gazety Krasnoyarskii rabochii 31, Krasnoyarsk 660014, Russian Federation
Instituto de Ciencia de Materiales de Aragon, Departamento de Fisica de la Materia Condensada, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
Instituto de Nanociencia de Aragon, Departamento de Fisica de la Materia Condensada, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain

Доп.точки доступа:
Varnakov, S. N.; Варнаков, Сергей Николаевич; Komogortsev, S. V.; Комогорцев, Сергей Викторович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Bartolome, J.; Sese, J.
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Magnetic properties of Fe/Si/Fe trilayer films / G. S. Patrin [et al.] // Phys. Solid State. - 2001. - Vol. 43, Is. 9. - P. 1712-1714, DOI 10.1134/1.1402227. - Cited References: 10 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
SUPERLATTICES
Аннотация: The magnetization of Fe/Si/Fe trilayer films is experimentally investigated at low temperatures. It is found that the shape of the magnetization curves measured at T 30 K depends on the thermomagnetic state of the system. The possible mechanisms of the interaction between iron layers are discussed. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Krasnoyarsk State Univ, Krasnoyarsk 660041, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Patrin, G. S.; Патрин, Геннадий Семёнович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Kononov, V. P.
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Magnetic properties, morphology and interfaces of (Fe/Si)n nanostructures / Bartolome J. [et al.] // J. Magn. Magn. Mater. - 2016. - Vol. 400. - P. 271-275, DOI 10.1016/j.jmmm.2015.07.046. - Cited References: 43. - The financial support of the Spanish MINECOMAT2011-23791 and MAT2015-53921-R, Aragonese DGA-IMANAE34 (cofounded by Fondo Social Europeo) and European FEDER funds is acknowledged. Program of the President of the Russian Federation for the support of leading scientific schools (Scientific School 2886.2014.2), RFBR (Grant no. 13-02-01265), the Ministry of Education and Science of the Russian Federation (State contract no. 02.G25.31.0043 and State task no. 16.663.2014К) . - ISSN 0304-8853

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
INTERLAYER EXCHANGE
   Fe/Si(100) INTERFACE
   SILICIDE FORMATION
   ULTRAHIGH-VACUUM
   FILMS
   IRON
   MAGNETORESISTANCE
   SUPERLATTICES
   SPECTROSCOPY
   DEPOSITION
Аннотация: A systematic study of the iron–silicon interfaces formed upon preparation of (Fe/Si) multilayers has been performed by the combination of modern and powerful techniques. Samples were prepared by molecular beam epitaxy under ultrahigh vacuum onto Si wafers or single crystalline Ag(100) buffer layers grown on GaAs(100). The morphology of these films and their interfaces was studied by a combination of scanning transmission electron microscopy, X-ray reflectivity, angle resolved X-ray photoelectron spectroscopy and hard X-ray photoelectron spectroscopy. The Si-on-Fe interface thickness and roughness were determined to be 1.4(1) nm and 0.6(1) nm, respectively. Moreover, determination of the stable phases formed at both Fe-on-Si and Si-on-Fe interfaces was performed using conversion electron Mössbauer spectroscopy on multilayers with well separated Si-on-Fe and Fe-on-Si interfaces. It is shown that while a fraction of Fe remains as α-Fe, the rest has reacted with Si, forming the paramagnetic FeSi phase and a ferromagnetic Fe rich silicide. We conclude that there is an identical paramagnetic c-Fe1−xSi silicide sublayer in both Si-on-Fe and Fe-on-Si interfaces, whereas an asymmetry is revealed in the composition of the ferromagnetic silicide sublayer.

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Доп.точки доступа:
Bartolome, J.; Badía-Romano, L.; Rubin J.; Bartolome F.; Varnakov, S. N.; Варнаков, Сергей Николаевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Burgler D.E.; International Conference on Magnetism(20 ; 2015 ; Jul ; 5-10 ; Barselona, Spain)
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10.

Mankov, Y. I.
High-frequency susceptibility of a multilayered ferromagnetic system with two-dimensional inhomogeneities / Y. I. Mankov, D. S. Tsikalov // Phys. Solid State. - 2010. - Vol. 52, Is. 3. - P. 544-553, DOI 10.1134/S1063783410030157. - Cited References: 24. - This study was supported in part by the Council on Grants from the President of the Russian Federation for the State Support of Scientific Investigations performed by the Leading Scientific Schools (grant no. 3818.2008.3), the Presidium of the Russian Academy of Sciences (Program no. 27.1), and the Ministry of Education and Science within the framework of the Federal Program (State Contract no. 2.740.11.0220). . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
SPIN-WAVE SUSCEPTIBILITY
   SPECTRUM
   SUPERLATTICES
   INTERFACES
Аннотация: This paper reports on the results of the investigation of the high-frequency susceptibility of a layered ferromagnetic structure in which, apart from a periodic change in the magnetic anisotropy parameter from layer to layer, this parameter varies along layers according to a random law (the superlattice with two-dimensional phase inhomogeneities). The evolution of the frequency dependence of the imaginary part of the averaged Green's function in the range of the energy gap (band gap) in the spectrum of waves propagating along the superlattice axis due to the change in the relative root-mean-square fluctuations of the phase gamma 2 has been studied at the boundaries of the odd Brillouin zones. It has been found that, for all odd Brillouin zones, the imaginary part of the Green's function exhibits a universal behavior: the peak corresponding to the edge of the band gap with a lower frequency remains unchanged, and the peak corresponding to the edge of the band gap with a higher frequency is smoothed with an increase in the quantity gamma(2). These effects, which were initially revealed at the boundary of the first Brillouin zone of the sinusoidal superlattice, have been explained, as before, by the specific features of the energy conservation laws for the incident and scattered waves in the lattice with two-dimensional inhomogeneities. It has been demonstrated that an increase in the Brillouin zone number leads to a decrease in the value of gamma(2) at which the peak at the edge of the band gap with a higher frequency disappears.

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Держатели документа:
[Mankov, Yu. I.
Tsikalov, D. S.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[Mankov, Yu. I.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, pr. Svobodny 79, Krasnoyarsk 660041, Russian Federation

Доп.точки доступа:
Tsikalov, D. S.; Цикалов, Денис Сергеевич
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