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Electron-microscopy and mossbauer study of superlattices in iron films / G. I. Frolov, O. A. Bayukov, V. S. Zhigalov [et al.] // JETP Letters. - 1995. - Vol. 61, Is. 1. - P. 63-67. - Cited References: 6 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Frolov, G. I.; Фролов, Георгий Иванович; Bayukov, O. A.; Баюков, Олег Артемьевич; Zhigalov, V. S.; Жигалов, Виктор Степанович; Kveglis, L. I.; Квеглис, Людмила Иосифовна; Myagkov, V. G.; Мягков, Виктор Григорьевич
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Dissipative chaos in semiconductor superlattices / K. N. Alekseev [et al.] // Phys. Rev. B. - 1996. - Vol. 54, Is. 15. - P. 10625-10636, DOI 10.1103/PhysRevB.54.10625. - Cited References: 89 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
NEGATIVE DIFFERENTIAL CONDUCTIVITY
   INJECTED SIGNAL
   BLOCH OSCILLATIONS
   COLLECTIVE EXCITATIONS
   DETERMINISTIC CHAOS
   MINIBAND TRANSPORT
   SURFACE-PLASMONS
   TIME-SERIES
   LASER
   VELOCITY
Аннотация: We consider the motion of ballistic electrons in a miniband of a semiconductor superlattice (SSL) under the influence of an external, time-periodic electric field. We use a semiclassical, balance-equation approach, which incorporates elastic and inelastic scattering (as dissipation) and the self-consistent field generated by the electron motion. The coupling of electrons in the miniband to the self-consistent held produces a cooperative nonlinear oscillatory mode which, when interacting with the oscillatory external field and the intrinsic Bloch-type oscillatory mode, can lead to complicated dynamics, including dissipative chaos. For a range of values of the dissipation parameters we determine the regions in the amplitude-frequency plane of the external field in which chaos can occur. Our results suggest that for terahertz external fields of the amplitudes achieved by present-day free-electron lasers, chaos may be observable in SSL's. We clarify the nature of this interesting nonlinear dynamics in the superlattice-external-field system by exploring analogies to the Dicke model of an ensemble of two-level atoms coupled with a resonant cavity field, and to Josephson junctions.

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Держатели документа:
LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545
LV KIRENSKII INST PHYS,KRASNOYARSK 660036,RUSSIA
UNIV ILLINOIS,DEPT PHYS,URBANA,IL 61801
ИФ СО РАН

Доп.точки доступа:
Alekseev, K. N.; Berman, G. P.; Campbell, D. K.; Cannon, E. H.; Cargo, M. C.
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Cluster structure and superlattices in Co and Fe films / S. M. Zharkov [et al.] // JETP Letters. - 1997. - Vol. 65, Is. 12. - P. 915-918, DOI 10.1134/1.567449. - Cited References: 9 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary

Аннотация: The process of dendritic crystallization of Co and Fe films is investigated. Electron-diffraction methods show that fractal growth of dendrites in Co and Fe films proceeds by multiple twinning of the elements of a nanostructure consisting of different clusters with close-packing. The formation of superstructures is explained by a shell model of a cluster structure forming nanocrystallites. (C) 1997 American Institute of Physics.

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Держатели документа:
L. V. Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Zharkov, S. M.; Жарков, Сергей Михайлович; Zhigalov, V. S.; Жигалов, Виктор Степанович; Kveglis, L. I.; Lisitsa, Y. V.; Renskaya, K. V.; Frolov, G. I.; Фролов, Георгий Иванович
}
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Zhigalov, V. S.
Nanocrystalline cobalt films prepared under ultrafast condensation conditions / V. S. Zhigalov, G. I. Frolov, L. I. Kveglis // Phys. Solid State. - 1998. - Vol. 40, Is. 11. - P. 1878-1883, DOI 10.1134/1.1130677. - Cited References: 12 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
IRON FILMS
   SUPERLATTICES
   GROWTH
   FE
   CO
Аннотация: The magnetic and electrical properties and the temperature dependence of these properties of cobalt films prepared at high condensation rates (10(5)-10(6) Angstrom/s) are investigated. Incremented annealing reveals several nonequilibrium states of cobalt in transition from the as-prepared metastable structure to the ordinary hcp structure. The anomalies of the properties are analyzed from the standpoint of the nanocrystalline state of the samples. Model concepts of microcluster formations in the investigated films are also discussed. (C) 1998 American Institute of Physics. [S1063-7834(98)02411-3].

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Frolov, G. I.; Фролов, Георгий Иванович; Kveglis, L. I.; Жигалов, Виктор Степанович
}
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Coherent carrier dynamics in semiconductor superlattices / E. . Diez [et al.] // Phys. Lett. A. - 1998. - Vol. 240, Is. 1-2. - P. 109-111, DOI 10.1016/S0375-9601(98)00023-1. - Cited References: 7 . - ISSN 0375-9601

РУБ Physics, Multidisciplinary
Рубрики:
RABI OSCILLATIONS
Аннотация: We investigate the coherent dynamics of carriers in semiconductor superlattices driven by ac-dc electric fields. We solve numerically the time-dependent effective-mass equation for the envelope function. We find that carriers undergo Rabi oscillations when the driving frequency is close to the separation between minibands. (C) 1998 Elsevier Science B.V.

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Держатели документа:
Univ Carlos III Madrid, GISC, Dept Matemat, E-28911 Madrid, Spain
Univ Vigo, Dept Tecnol Comunicac, E-36200 Vigo, Spain
Univ Complutense Madrid, GISC, Dept Fis Mat, E-28040 Madrid, Spain
Univ Calif Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
Univ Calif Los Alamos Natl Lab, CNLS, Los Alamos, NM 87545 USA
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Diez, E.; Gomez-Alcala, R.; Dominguez-Adame, F.; Sanchez, A.; Berman, G. P.
}
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Ignatchenko, V. A.
Spin - Wave spectrum in randomly modulated superlattices / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin ; ed.: VG Baryakhtar, PE Wigen, E Wigen, // FRONTIERS IN MAGNETISM OF REDUCED DIMENSION SYSTEMS. Ser. NATO ADVANCED SCIENCE INSTITUTE SERIES, SUB-SERIES 3, HIGH TECHNOLOGY : SPRINGER, 1998. - Vol. 49: NATO Advanced Study Institute on Frontiers in Magnetism of Reduced Dimension Systems (MAY 25-JUN 03, 1997, CRIMEA, UKRAINE). - P. 217-222. - Cited References: 0 . - ISBN 0-7923-5026-X

РУБ Physics, Applied + Physics, Condensed Matter

Аннотация: A theory of the spectrum of spin waves in partially randomized multilayers is developed. A model of a superlattice with sharp interfaces whose period is randomly modulated is considered. The correlation function of the randomness of the superlattice is deduced for one-dimensional planar inhomogeneities. The dispersion law and damping of the spin waves are calculated at the boundaries of the Brillouin zones of the superlattice in the weak-coupling approximation.

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Baryakhtar, V. G. \ed.\; Wigen, PE \ed.\; Wigen,, E \ed.\; Игнатченко, Вальтер Алексеевич
}
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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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Ignatchenko, V. A.
Spin-wave susceptibility of partially randomized ferromagnetic superlattices / V. A. Ignatchenko, Y. I. Man'kov, A. V. Pozdnyakov // J. Exp. Theor. Phys. - 1999. - Vol. 89, Is. 4. - P. 717-722, DOI 10.1134/1.559033. - Cited References: 15 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
SPECTRUM
LOCALIZATION
Аннотация: This paper is a theoretical investigation of the effect of inhomogeneities in the period of a ferromagnetic superlattice on the high-frequency superlattice susceptibility. The calculations are done for a model in which the uniaxial magnetic anisotropy is taken as the physical parameter that characterizes both the ideal superlattice and a partially randomized superlattice. It is found that as the inhomogeneities become more intense, the two resonance peaks corresponding to the splitting of the spectrum at the edge of the Brillouin zone of the superlattice broaden, move closer to each other, and finally merge into one. The height of this peak increases and the peak width decreases as the intensity of the inhomogeneities increases further. The effect of inhomogeneities on the susceptibility differs dramatically in the two limits of short- and long-wave inhomogeneities: in the latter case (in contrast to the former) the dependence of the separation of the susceptibility peaks on the intensity and correlation properties of the inhomogeneities is nonmonotonic. The possibility of observing these effects in spin-wave resonance experiments involving multilayer magnetic films is also discussed. (C) 1999 American Institute of Physics. [S1063-7761(99)01510-3].

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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Man'kov, Y. I.; Pozdnyakov, A. V.; Игнатченко, Вальтер Алексеевич
}
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Ignatchenko, V. A.
Spectrum of waves in randomly modulated multilayers / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 1999. - Vol. 59, Is. 1. - P. 42-45, DOI 10.1103/PhysRevB.59.42. - Cited References: 14 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
SEMICONDUCTOR SUPERLATTICES
LOCALIZATION
SYSTEMS
Аннотация: The spectrum and damping of waves in partially randomized multilayer structures are calculated. A method of calculation which was proposed and demonstrated earlier for the model of a superlattice with a harmonic dependence of its material parameters along its axis in the initial state, is extended here to the case of a multilayer structure (i.e., a superlattice with sharp interfaces). One- and three-dimensional inhomogeneities are considered, and the correlation function of the superlattice is derived. The spectrum and damping of waves in the superlattice described by this correlation function are found in the weak-coupling approximation in the vicinities of all the odd Brillouin zone boundaries. [S0163-1829(99)14501-6].

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Держатели документа:
LV Kirensky Phys Inst, 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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10.

Ignatchenko, V. A.
The spectrum and damping of waves in partially randomized multilayers / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // J. Phys.: Condens. Matter. - 1999. - Vol. 11, Is. 13. - P. 2773-2790, DOI 10.1088/0953-8984/11/13/013. - Cited References: 24 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
SPIN-WAVES
   SEMICONDUCTOR SUPERLATTICES
   LOCALIZATION
   SYSTEMS
Аннотация: The spectrum and damping of waves in partially randomized multilayer structures are calculated. A method of calculation that was proposed and demonstrated earlier, for the model of a superlattice with a harmonic dependence of its material parameters along its axis in the initial state, is extended to the case of a multilayer structure (i.e., a superlattice with sharp interfaces). One- and three-dimensional random modulations of the period are considered, and the correlation function of the superlattice is derived as a series in which each term is a product of a harmonic and a monotonically decaying function. The law of decay of the correlation function is Gaussian for smooth inhomogeneities, and has different forms for one- and three-dimensional short-wavelength inhomogeneities. The spectrum and damping of waves in the superlattice described by this correlation function are found in the weak-coupling approximation in the vicinities of all of the odd Brillouin zone boundaries. Analytical dependences of the main characteristics of the spectrum and damping on the zone number n are obtained. The conditions for the closing of the gaps at the Brillouin zone boundaries are derived, and depend on the dimensionality of the inhomogeneities and the degree of their smoothness.

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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Irvine, CA 92697 USA
ИФ СО РАН
L V Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
University of California, Irvine, CA 92697 4575, United States

Доп.точки доступа:
Mankov, Y. I.; Maradudin, A. A.; Игнатченко, Вальтер Алексеевич
}
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11.

Multistability, absolute negative conductivity and spontaneous current generation in semiconductor superlattices in large magnetic fields / E. H. Cannon [et al.] // Superlattices Microstruct. - 2000. - Vol. 27, Is. 5-6. - P. 495-498, DOI 10.1006/spmi.2000.0866. - Cited References: 7 . - ISSN 0749-6036

РУБ Physics, Condensed Matter
Рубрики:
TRANSPORT
Кл.слова (ненормированные):
superlattice -- miniband transport -- nonlinear transport -- Current voltage characteristics -- Electric conductivity -- Electron transport properties -- Magnetic field effects -- Mathematical models -- Multistable circuits -- Balance equation models -- Hot electrons -- Miniband transport -- Semiconductor superlattices
Аннотация: We discuss electron transport through a semiconductor superlattice subject to an electric field parallel to, and a magnetic field perpendicular to, the growth axis using a semiclassical balance equation model. We find that the current-voltage characteristic becomes multistable in a large magnetic field; furthermore, hot electrons display novel features in their current-voltage characteristic, including absolute negative conductivity and a spontaneously generated de current at zero bias. (C) 2000 Academic Press.

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Держатели документа:
Univ Illinois, Dept Phys, Urbana, IL 61801 USA
Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England
LV Kirensky Phys Inst, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
ИФ СО РАН
Department of Physics, Univ. Illinois at Urbana-Champaign, 1110 W. Green St., Urbana, IL 61801, United States
Department of Physics, Loughborough University, Loughborough, LE11 3TU, United Kingdom
Theor. of Nonlinear Processes Lab., Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Cannon, E. H.; Campbell, D. K.; Kusmartsev, F. V.; Alekseev, K. N.; International Workshop on Surgaces and Interfaces in Mesoscopic Devices(3 ; 1999 ; Dec. ; 6-10 ; Maui, Hawaii)
}
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12.

Multilayer composite epitaxial CuCo single crystals / E. S. Mushailov [et al.] // JETP Letters. - 2000. - Vol. 71, Is. 5. - P. 195-197, DOI 10.1134/1.568313. - Cited References: 10 . - ISSN 0021-3640

РУБ Physics, Multidisciplinary
Рубрики:
SUPERLATTICES
DIFFRACTION
FILMS
Аннотация: The ion-plasma spraying method was used to synthesize new phases of metastable atomic-ordered layered CuCo single crystals and single crystals of CucCo1 - c solid solutions via epitaxial layer-by-layer crystallization, and some of their physical properties were studied. (C) 2000 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Krasnoyarsk 660049, Russia
Russian Acad Sci, Siberian Div, Inst Chem & Chem Technol, Krasnoyarsk, Russia
ИФ СО РАН
ИХХТ СО РАН

Доп.точки доступа:
Mushailov, E. S.; Kim, P. D.; Ким, Пётр Дементьевич; Turpanov, I. A.; Турпанов, Игорь Александрович; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Bondarenko, G. N.; Бондаренко, Галина Николаевна; Mishina, S. E.
}
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13.

Self-propagating high-temperature synthesis in Pt/Co/MgO(001) epitaxial thin films / V. G. Myagkov [et al.] // Phys. Solid State. - 2000. - Vol. 42, Is. 5. - P. 968-972, DOI 10.1134/1.1131321. - Cited References: 26 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
PERPENDICULAR MAGNETIC-ANISOTROPY
   LAYERED STRUCTURES
   CO/PT
   MULTILAYERS
   SUPERLATTICES
   PTFE(001)
   GROWTH
   PD/CO
Аннотация: The self-propagating high-temperature synthesis in the two-layer and multilayer Pt / Co(001) thin films has been investigated. It is shown that the initiation of the synthesis occurs at temperatures of 770-820 K. After the synthesis in the two-layer film samples, the PtCo(001) disordered phase exhibits an epitaxial growth at the interface between cobalt and platinum layers. In the multilayer Pt/Co(001) thin films, the self-propagating high-temperature synthesis also brings about the formation of the PtCo(001) disordered phase on the MgO(001) surface. Further annealing at a temperature of 870 K for 4 h results in the transition of the PtCo(001) disordered phase to the ordered phase. Rapid thermal annealing of the Pt/Co(001) multilayer films at a temperature of 1000 K leads to the formation of the CoPt3 phase. The magnetic characteristics change in accord with the structural transformations in Pt/Co film samples. (C) 2000 MAIK "Nauka/Interperiodica".

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Держатели документа:
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Div, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia
ИФ СО РАН
ИХХТ СО РАН

Доп.точки доступа:
Myagkov, V. G.; Мягков, Виктор Григорьевич; Li, L. A.; Ли, Людмила Алексеевна; Bykova, L. E.; Быкова, Людмила Евгеньевна; Turpanov, I. A.; Турпанов, Игорь Александрович; Kim, P. D.; Ким, Пётр Дементьевич; Bondarenko, G. V.; Бондаренко, Геннадий Васильевич; Bondarenko, G. N.; Бондаренко, Галина Николаевна
}
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14.

Wannier-Stark states of a quantum particle in 2D lattices / M. . Gluck [et al.] // Phys. Rev. Lett. - 2001. - Vol. 86, Is. 14. - P. 3116-3119, DOI 10.1103/PhysRevLett.86.3116. - Cited References: 18 . - ISSN 0031-9007

РУБ Physics, Multidisciplinary
Рубрики:
BLOCH PARTICLE
   AC FIELDS
   LADDERS
   DC
   SUPERLATTICES
   STATISTICS
   ELECTRONS
   LIFETIME
Аннотация: A simple method of calculating the Wannier-Stark resonances in 2D lattices is suggested. Using this method we calculate the complex Wannier-Stark spectrum for a nonseparable 2D potential realized in optical lattices and analyze its general structure. The dependence of the lifetime of Wannier-Stark states on the direction of the static field (relative to the crystallographic axis of the lattice) is briefly discussed.

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Держатели документа:
Univ Kaiserslautern, Fachbereich Phys, D-67653 Kaiserslautern, Germany
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Gluck, M.; Keck, F.; Kolovsky, A. R.; Коловский, Андрей Радиевич; Korsch, H. J.
}
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15.

Fractional and unquantized dc voltage generation in THz-driven semiconductor superlattices / K. N. Alekseev [et al.] // Europhys. Lett. - 2001. - Vol. 56, Is. 6. - P. 842-848, DOI 10.1209/epl/i2001-00596-9. - Cited References: 40 . - ISSN 0295-5075

РУБ Physics, Multidisciplinary
Рубрики:
BLOCH OSCILLATIONS
   SYMMETRY-BREAKING
   ELECTRIC-FIELD
   FREQUENCY
   TRANSPORT
   CHAOS
   RESONANCES
   RADIATION
Аннотация: We consider the spontaneous creation of a dc voltage across a strongly coupled semiconductor superlattice subjected to THz radiation. We show that the dc voltage may be approximately proportional either to an integer or to a half-integer multiple of the frequency of the applied ac field, depending on the ratio of the characteristic scattering rates of conducting electrons. For the case of an ac field frequency less than the characteristic scattering rates, we demonstrate the generation of an unquantized dc voltage.

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Держатели документа:
Univ Oulu, Dept Phys Sci, Div Theoret Phys, FIN-90014 Oulu, Finland
LV Kirenskii Inst Phys, Theory Nonlinear Proc Lab, Krasnoyarsk 660036, Russia
Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USA
Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England
Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA
Boston Univ, Dept Phys, Boston, MA 02215 USA
ИФ СО РАН
Theor. of Nonlinear Processes Lab., Kirensky Institute of Physics, Krasnoyarsk 660036, Russian Federation
Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN 46556, United States
Department of Physics, Loughborough University, Loughborough, LE11 3TU, United Kingdom
Depts. of Elec. and Comp. E., Boston University, Boston, MA 02215, United States

Доп.точки доступа:
Alekseev, K. N.; Cannon, E. H.; Kusmartsev, F. V.; Campbell, D. K.
}
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16.

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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17.

Vetrov, S. Y.
Localized electromagnetic modes and the transmission spectrum of a one-dimensional photonic crystal with lattice defects / S. Y. Vetrov, A. V. Shabanov // J. Exp. Theor. Phys. - 2001. - Vol. 93, Is. 5. - P. 977-984, DOI 10.1134/1.1427109. - Cited References: 26 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
BAND-GAP
   SPONTANEOUS EMISSION
   SUPERLATTICES
   WAVES
   PROPAGATION
   LIGHT
   EDGE
Аннотация: The properties of localized electromagnetic modes in a one-dimensional photonic crystal with a structural defect layer were studied. The role of the defect was played by an anisotropic nematic liquid crystal layer. The frequency and the damping factor of defect modes were shown to substantially depend on the defect layer thickness and the orientation of the optical axis of the nematic. The transmission spectra of photonic crystals with one and two lattice defects were studied. Taking into account the special feature of nematic liquid crystals distinguishing them from usual crystals, namely, large permittivity anisotropy, it was shown that the transmission spectrum of the photonic crystal could be controlled by varying the orientation of the optical axis of the nematic, for instance, under the action of an external electric field. (C) 2001 MAIK "Nauka/Interperiodica".

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Держатели документа:
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Shabanov, A. V.; Шабанов, Александр Васильевич
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18.

Gluck, M.
Wannier-Stark resonances in optical and semiconductor superlattices / M. . Gluck, A. R. Kolovsky, H. J. Korsch // Phys. Rep.-Rev. Sec. Phys. Lett. - 2002. - Vol. 366, Is. 3. - P. 103-182, DOI 10.1016/S0370-1573(02)00142-4. - Cited References: 234 . - ISSN 0370-1573

РУБ Physics, Multidisciplinary
Рубрики:
UNIFORM ELECTRIC-FIELD
   QUANTUM CHAOTIC SCATTERING
   FRANZ-KELDYSH OSCILLATIONS
   METAL-INSULATOR-TRANSITION
   ALTERNATING SITE ENERGIES
   GAAS-ALAS SUPERLATTICES
   RANDOM UNITARY MATRICES
   WAVE-GUIDE ARRAYS
   BLOCH OSCILLATIONS
   PERTURBATION-THEORY
Кл.слова (ненормированные):
Wannier-Stark resonances -- semiconductor superlattices -- optical lattices -- resonance statistics -- quantum chaos -- Optical lattices -- Quantum chaos -- Resonances statistics -- Semiconductor superlattices -- Wannier-Stark resonances
Аннотация: In this work, we discuss the resonance states of a quantum particle in a periodic potential plus a static force. Originally, this problem was formulated for a crystal electron subject to a static electric field and it is nowadays known as the Wannier-Stark problem. We describe a novel approach to the Wannier-Stark problem developed in recent years. This approach allows to compute the complex energy spectrum of a Wannier-Stark system as the poles of a rigorously constructed scattering matrix and solves the Wannier-Stark problem without any approximation. The suggested method is very efficient from the numerical point of view and has proven to be a powerful analytic tool for Wannier-Stark resonances appearing in different physical systems such as optical lattices or semiconductor superlattices. (C) 2002 Elsevier Science B.V. All rights reserved.

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Держатели документа:
Univ Kaiserslautern, Fachbereich Phys, D-67653 Kaiserslautern, Germany
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Fachbereich (FB) Physik, Universitat Kaiserslautern, D-67653 Kaiserslautern, Germany
L.V. Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kolovsky, A. R.; Коловский, Андрей Радиевич; Korsch, H. J.
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19.

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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20.

Wannier-Stark resonances in semiconductor superlattices / M. . Gluck [et al.] // Phys. Rev. B. - 2002. - Vol. 65, Is. 11. - Ст. 115302, DOI 10.1103/PhysRevB.65.115302. - Cited References: 22 . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
ELECTRIC-FIELD
   STATES
   LADDERS
   BREAKDOWN
   BLOCH
   LOCALIZATION
Аннотация: Wannier-Stark states for semiconductor superlattices in strong static fields, where the interband Landau-Zener tunneling cannot be neglected, are rigorously calculated. The lifetime of these metastable states was found to show multiscale oscillations as a function of the static field, which is explained by an interaction with above-barrier resonances. An equation, expressing the absorption spectrum of semiconductor superlattices in terms of the resonance Wannier-Stark states, is obtained and used to calculate the absorption spectrum in the region of high static fields.

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Держатели документа:
Univ Kaiserslautern, Fachbereich Phys, D-67653 Kaiserslautern, Germany
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Gluck, M.; Kolovsky, A. R.; Коловский, Андрей Радиевич; Korsch, H. J.; Zimmer, F.
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