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3D optical vortex lattices / D. A. Ikonnikov, S. A. Myslivets, V. G. Arkhipkin, A. M. Vyunishev // Ann. Phys.-Berlin. - 2021. - Vol. 533, Is. 7. - Ст. 2100114, DOI 10.1002/andp.202100114. - Cited References: 29. - This work was supported by the Russian Science Foundation (Grant No. 19-12-00203).The surface grating was fabricated and characterized at the Center for Collective Use of the Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences. The authors thank M. N. Volochaev and A. I. Zaitsev for help . - ISSN 0003-3804. - ISSN 1521-3889

РУБ Physics, Multidisciplinary
Рубрики:
MANIPULATION
   PARTICLES
   ARRAY
   BEAMS
   GENERATION
   TRANSPORT
   VORTICES
Кл.слова (ненормированные):
optical lattices -- optical vortices -- Talbot effect
Аннотация: Fresnel diffraction of light beams with a topological charge on a 2D regular amplitude transparency mask is studied. Numerical predictions show that the 3D optical lattices of optical vortices can be formed using the Talbot effect, with these predictions confirmed by the experimental reconstruction of all 3D optical vortex lattices. The periodicity of the 3D optical vortex lattices is determined by the light wavelength and periodicity of a transparency mask. Furthermore, it is shown that the optical vortices are created and annihilated during light propagation behind the mask with the preservation of the total topological charge. The 3D optical vortex lattices are considered to be tolerant to the perturbations induced by trapped particles caused by the features of the Talbot effect. The 3D optical vortex lattices open new possibilities for light-matter interactions and the related applications.

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

Доп.точки доступа:
Ikonnikov, D. A.; Иконников, Денис Андреевич; Myslivets, S. A.; Мысливец, Сергей Александрович; Arkhipkin, V. G.; Архипкин, Василий Григорьевич; Vyunishev, A. M.; Вьюнышев, Андрей Михайлович; Russian Science FoundationRussian Science Foundation (RSF) [19-12-00203]
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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.
Pendulum limit, chaos and phase-locking in the dynamics of ac-driven semiconductor superlattices / K. N. Alekseev, F. V. Kusmartsev // Phys. Lett. A. - 2002. - Vol. 305, Is. 5. - P. 281-288, DOI 10.1016/S0375-9601(02)01420-2. - Cited References: 60 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary
Рубрики:
STRANGE NONCHAOTIC ATTRACTORS
   DC VOLTAGE GENERATION
   JOSEPHSON-JUNCTIONS
   GAAS/ALAS SUPERLATTICE
   BLOCH OSCILLATIONS
   TERAHERTZ RADIATION
   ELECTRIC-FIELD
   THZ RADIATION
   FREQUENCY
   TRANSPORT
Кл.слова (ненормированные):
semiconductor superlattice -- pendulum -- chaos -- phase-locking -- Josephson junction -- Chaos -- Josephson junction -- Pendulum -- Phase-locking -- Semiconductor superlattice -- analytic method -- analytical parameters -- article -- dynamics -- electric potential -- semiconductor -- temperature
Аннотация: We describe a limiting case when nonlinear dynamics of an ac-driven semiconductor superlattice in the miniband transport regime is governed by a periodically forced and damped pendulum equations. We find analytically the conditions for a transition to chaos. With increasing temperature the chaos disappears. We also discuss fractional do voltage states in a superlattice originating from phase-locked states of the pendulum. (C) 2002 Elsevier Science B.V. All rights reserved.

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Держатели документа:
Oulu Univ, Dept Phys Sci, FIN-90014 Oulu, Finland
LV Kirenskii Inst Phys, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Loughborough Univ Technol, Dept Phys, Loughborough LE11 3TU, Leics, England
ИФ СО РАН
Department of Physical Sciences, University of Oulu, P.O. Box 3000, FIN-90014, Oulu, Finland
Theory of Nonlin. Proc. Laboratory, Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom

Доп.точки доступа:
Kusmartsev, F. V.
}
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Angular dependence of the magnetoresistance in Y3/4Lu1/4Ba2Cu3O7-CuO composites at 77 K / D. A. Balaev [et al.] // Tech. Phys. Lett. - 2006. - Vol. 32, Is. 8. - P. 677-679, DOI 10.1134/S1063785006080128. - Cited References: 16 . - ISSN 1063-7850

РУБ Physics, Applied
Рубрики:
CERAMIC SUPERCONDUCTORS
   MAGNETIC-FIELD
   MICROSTRUCTURE
   BOUNDARIES
   TRANSPORT
   MOTION
   FILMS
Аннотация: The angular dependence of the magnetoresistance of polycrystalline Y3/4Lu1/4Ba2Cu3O7-CuO composites has been studied. These composites represent a system of Josephson junctions and exhibit a large magnetoresistance at 77 K. In addition to the isotropic component, there is the angle-dependent component proportional to sin(2)theta, where theta is the angle between the directions of current and magnetic field. This behavior is unambiguous evidence for the process of flux flow in the Josephson medium realized in the composites.

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Prus, A. G.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Petrov, M. I.; Петров, Михаил Иванович
}
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Aplesnin, S. S.
Influence of the four-spin exchange interaction on the magnetic properties of manganites / S. S. Aplesnin, N. I. Piskunova // J. Phys.: Condens. Matter. - 2005. - Vol. 17, Is. 37. - P. 5881-5888, DOI 10.1088/0953-8984/17/37/023. - Cited References: 18 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
METAL-INSULATOR-TRANSITION
   PHASE
   SUSCEPTIBILITY
   LA1-XSRXMNO3
   FERROMAGNET
   TRANSPORT
Кл.слова (ненормированные):
Computer simulation -- Ion exchange -- Lanthanum compounds -- Magnetic properties -- Monte Carlo methods -- Phase diagrams -- Phase transitions -- Four-spin exchange interaction -- Magnetic phase diagram -- Manganites -- Metal-dielectric transition -- Manganese compounds
Аннотация: It is shown that non-Heisenberg exchange interaction should be taken into account to reproduce the magnetic phase diagram of La(1-x)A(x)MnO(3) (A = Ca, Sr) using only effective exchange parameters and spins. The formation of the four-spin exchange arises from carrier hopping and coincides with the critical concentration metal-dielectric transition. The two- and four-spin exchange parameters are determined by Monte Carlo simulations.

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Держатели документа:
MF Reshetneva Aircosm Siberian State Univ, Krasnoyarsk 660036, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
M F Reshetneva Aircosmic Siberian State University, Krasnoyarsk 660036, Russian Federation
L V Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Science, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Piskunova, N. I.; Аплеснин, Сергей Степанович
}
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Balaev, D. A.
Tunnel Conductivity and Tunnel Magnetoresistance of the Fe-SiO Films: Interplay of the Magnetotransport and Magnetic Properties / D. A. Balaev, A. D. Balaev // Phys. Solid State. - 2019. - Vol. 61, Is. 7. - P. 1203-1210, DOI 10.1134/S1063783419070047. - Cited References: 48 . - ISSN 1063-7834. - ISSN 1090-6460

РУБ Physics, Condensed Matter
Рубрики:
GIANT MAGNETORESISTANCE
   GRANULAR FILMS
   TEMPERATURE
   TRANSPORT
Аннотация: The electrical properties of a system of nanogranular amorphous Fe–SiO films with a SiO concentration between 0 and 92 vol % have been investigated. The samples with a low SiO content are characterized by the metal-type conductivity. With an increase in the dielectric content x in the films, the concentration transition from the metal to tunneling conductivity occurs at x ≈ 0.6. At the same concentration, the ferromagnet–superparamagnet transition is observed, which was previously investigated by the magnetic method. The temperature dependences of the electrical resistivity ρ(T) for the compositions corresponding to the dielectric region obey the law ρ(T) ~ exp(2(C/kT)1/2), which is typical of the tunneling conductivity. The estimation of the metal grain sizes from the tunneling activation energy C has shown good agreement with the sizes obtained previously by analyzing the magnetic properties. In the dielectric region of the compositions, the giant magnetoresistive effect attaining 25% at low temperatures has been obtained.

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Публикация на русском языке

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

Доп.точки доступа:
Balaev, A. D.; Балаев, Александр Дмитриевич; Балаев, Дмитрий Александрович
}
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    Bound states in the continuum in open acoustic resonators / A. A. Lyapina [et al.] // J. Fluid Mech. - 2015. - Vol. 780. - P. 370-387, DOI 10.1017/jfm.2015.480. - Cited References: 48. - This work has been supported by Russian Science Foundation through grant 14-12-00266. . - ISSN 0022-1120
   Перевод заглавия: Связанное состояние в континууме в открытом акустическом резонаторе

РУБ Mechanics + Physics, Fluids & Plasmas
Рубрики:
TRAPPED MODES
   FANO RESONANCES
   COMPLEX RESONANCES
   PARALLEL PLATES
   SIDE-BRANCHES
   WAVE-GUIDES
   ABSORPTION
   TRANSPORT
   CHANNELS
   SYSTEM
Кл.слова (ненормированные):
aeroacoustics -- noise control -- wave scattering
Аннотация: We consider bound states in the continuum (BSCs) or embedded trapped modes in two- and three-dimensional acoustic axisymmetric duct-cavity structures. We demonstrate numerically that, under variation of the length of the cavity, multiple BSCs occur due to the Friedrich-Wintgen two-mode full destructive interference mechanism. The BSCs are detected by tracing the resonant widths to the points of the collapse of Fano resonances where one of the two resonant modes acquires infinite life-time. It is shown that the approach of the acoustic coupled mode theory cast in the truncated form of a two-mode approximation allows us to analytically predict the BSC frequencies and shape functions to a good accuracy in both two and three dimensions. © 2015 Cambridge University Press.

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

Доп.точки доступа:
Lyapina, A. A.; Ляпина, Алина Андреевна; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Pilipchuk, A. S.; Пилипчук, Артем Сергеевич; Sadreev, A. F.; Садреев, Алмаз Фаттахович
}
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BULGAKOV, E. N.
MESOSCOPIC RING UNDER THE INFLUENCE OF TIME-PERIODICAL FLUX - AHARONOV-BOHM OSCILLATIONS AND TRANSMISSION OF WAVE-PACKETS / E. N. BULGAKOV, A. F. SADREEV // Phys. Rev. B. - 1995. - Vol. 52, Is. 16. - P. 11938-11944, DOI 10.1103/PhysRevB.52.11938. - Cited References: 25 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
QUANTUM OSCILLATIONS
NETWORKS
TRANSPORT
Аннотация: The Aharonov-Bohm oscillations in the transmission probability of a one-dimensional mesoscopic ring between two electrodes are considered numerically where a time-periodical flux gamma(t)=gamma+lambda cos omega t is applied. Such a flux simulates a phase-coherent inelastic scattering due to the absorption/emission processes of modulation quanta. An increase of alternating flux amplitude lambda drastically changes the Aharonov-Bohm oscillations of the transmission though the exact period remains phi(0)=hc/e. A frequency dependence of the transmission has abrupt steps at omega=(E-E(F))/n, caused by the locking of the transmission in the nth channel where EF is the Fermi level. Moreover, for transmission of a narrow wave packet the time-periodical flux gives rise to two effects. The first is a fractioning of the input wave packet by the ring in such a way that the output wave function consists of a few separate wave packets. Their number, distance apart, and height essentially depend on the static flux gamma. The second effect is a strong space squeezing of the output wave packet.

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Держатели документа:
L. V. Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
SADREEV, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
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Bulgakov, E. N.
Phase rigidity and avoided level crossings in the complex energy plane / E. N. Bulgakov, I. . Rotter, A. F. Sadreev // Phys. Rev. E. - 2006. - Vol. 74, Is. 5. - Ст. 56204, DOI 10.1103/PhysRevE.74.056204. - Cited References: 40 . - ISSN 1539-3755

РУБ Physics, Fluids & Plasmas + Physics, Mathematical
Рубрики:
OPEN QUANTUM-SYSTEMS
   FANO RESONANCES
   S-MATRIX
   DOT
   CONTINUUM
   TRANSMISSION
   COHERENCE
   TRANSPORT
   BILLIARDS
   PROBE
Кл.слова (ненормированные):
Eigenvalues and eigenfunctions -- Hamiltonians -- Resonance -- Rigidity -- Semiconductor quantum dots -- Biorthogonal eigenfunctions -- Open quantum system -- Phase rigidity -- Quantum theory
Аннотация: We consider the effective Hamiltonian of an open quantum system, its biorthogonal eigenfunctions phi(lambda), and define the value r(lambda)=(phi(lambda)parallel to phi(lambda))/ that characterizes the phase rigidity of the eigenfunctions phi(lambda). In the scenario with avoided level crossings, r(lambda) varies between 1 and 0 due to the mutual influence of neighboring resonances. The variation of r(lambda) is an internal property of an open quantum system. In the literature, the phase rigidity rho of the scattering wave function Psi(E)(C) is considered. Since Psi(E)(C) can be represented in the interior of the system by the phi(lambda), the phase rigidity rho of the Psi(E)(C) is related to the r(lambda) and therefore also to the mutual influence of neighboring resonances. As a consequence, the reduction of the phase rigidity rho to values smaller than 1 should be considered, at least partly, as an internal property of an open quantum system in the overlapping regime. The relation to measurable values such as the transmission through a quantum dot, follows from the fact that the transmission is, in any case, resonant at energies that are determined by the real part of the eigenvalues of the effective Hamiltonian. We illustrate the relation between phase rigidity rho and transmission numerically for small open cavities.

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Держатели документа:
Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Linkoping Univ, Dept Phys & Measurement Technol, S-58183 Linkoping, Sweden
ИФ СО РАН
Max-Planck-Institut fur Physik Komplexer Systeme, D-01187 Dresden, Germany
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
Department of Physics and Measurement, Technology Linkoping University, S-581 83 Linkoping, Sweden

Доп.точки доступа:
Rotter, I.; Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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10.

Bulgakov, E. N.
Spin polarization in quantum dots by radiation field with circular polarization / E. N. Bulgakov, A. F. Sadreev // JETP Letters. - 2001. - Vol. 73, Is. 10. - P. 505-509, DOI 10.1134/1.1387515. - Cited References: 25 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
2-DIMENSIONAL ELECTRON-GAS
   RANDOM MAGNETIC-FIELD
   ORBIT INTERACTION
   TRANSPORT
   BARRIERS
   MAGNETORESISTANCE
   PHASE
Аннотация: For circular quantum dot (QD), taking into account the Razhba spin-orbit interaction (SOI), an exact energy spectrum is obtained. For a small SOI constant, the eigenfunctions of the QD are found. It is shown that the application of a radiation field with circular polarization removes the Kramers degeneracy of the QD eigenstates. Effective spin polarization of electrons transmitted through the QD owing to a radiation field with circular polarization is demonstrated. (C) 2001 MAIK "Nauka/Interperiodica".

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

Доп.точки доступа:
Sadreev, A. F.; Садреев, Алмаз Фаттахович; Булгаков, Евгений Николаевич
}
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