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1.


    Zakharov, Y. V.
    Negative low-temperature magnetoresistance of a magnetically nonuniform compensated metal / Y. V. Zakharov, Y. I. Mankov, L. S. Titov // Fiz. Nizk. Temp. - 1986. - Vol. 12, Is. 4. - P. 408-416. - Cited References: 24 . - ISSN 0132-6414
РУБ Physics, Applied


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Доп.точки доступа:
Mankov, Y. I.; Маньков, Юрий Иннокентьевич; Titov, L.S.
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2.


    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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3.


    MANKOV, Y. I.
    HIGH-FREQUENCY ELECTRIC-CONDUCTIVITY OF FERROMAGNETIC SEMICONDUCTOR WITH SURFACE ANISOTROPY / Y. I. MANKOV // Fiz. Tverd. Tela. - 1990. - Vol. 32, Is. 4. - P. 1208-1215. - Cited References: 19 . - ISSN 0367-3294
РУБ Physics, Condensed Matter


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4.


    MANKOV, Y. I.
    GALVANOMAGNETIC PROPERTIES OF A METALLIC BICRYSTAL / Y. I. MANKOV // Fiz. Tverd. Tela. - 1983. - Vol. 25, Is. 10. - P. 3172-3174. - Cited References: 3 . - ISSN 0367-3294
РУБ Physics, Condensed Matter


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5.


    Mankov, Y. I.
    Electromagnetic waves with a negative group velocity in a randomly inhomogeneous Josephson junction / Y. I. Mankov // Phys. Solid State. - 2013. - Vol. 55, Is. 5. - P. 924-929, DOI 10.1134/S1063783413050223 . - ISSN 1063-7834
Аннотация: Electromagnetic waves in a randomly inhomogeneous Josephson junction have been investigated by the averaged Green's function method for a nonmonotonic decay of the correlations of inhomogeneities. Modifications of the spectrum and the decay of these excitations caused by spatial fluctuations of the critical current of the Josephson junction have been studied. The regions of the values of the frequency, the wave number, and the stochastic parameters of the medium, at which the waves have a negative group velocity, have been determined. В© 2013 Pleiades Publishing, Ltd.

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Публикация на русском языке Маньков, Юрий Иннокентьевич. Электромагнитные волны с отрицательной групповой скоростью в случайно-неоднородном джозефсоновском переходе / Ю. И. Маньков // Физика твердого тела. - 2013. - Т. 55, Вып. 5. - С. 850-854


Доп.точки доступа:
Маньков, Юрий Иннокентьевич
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6.


    Mankov, Y. I.
    Effect of surface fixing of remagnetization on magnetoresistance of thin ferromagnetic layers / Y. I. Mankov // Fiz. Tverd. Tela. - 1994. - Vol. 36, Is. 12. - P. 3634-3637. - Cited References: 8 . - ISSN 0367-3294
РУБ Physics, Condensed Matter
Рубрики:
ANISOTROPY

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7.


    Ignatchenko, V. A.
    Wave spectrum of multilayers with finite thicknesses of interfaces / V. A. Ignatchenko, Y. I. Mankov, A. A. Maradudin // Phys. Rev. B. - 2000. - Vol. 62, Is. 3. - P. 2181-2184, DOI 10.1103/PhysRevB.62.2181. - Cited References: 24 . - ISSN 0163-1829
РУБ Physics, Condensed Matter
Рубрики:
SPIN
   EXCITATIONS
   MEDIA
Аннотация: To describe a 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. Depending on the value of the modulus kappa of the elliptic function, the model describes the limiting cases of multilayers with sharp interfaces (kappa=1, d/l=0, where d is the thickness of the interface, l is the period of the superlattice) and of sinusoidal superlattices (kappa=0, d/l=1/4), as Well as all intermediate situations. We investigate the wave spectrum in such a superlattice. The dependences of the widths of the gaps in the spectrum at the boundaries of ail odd Brillouin zones on the ratio d/l are found. It is shown that the thicknesses of the interfaces can be determined if the experimental value of the relation between the widths of the first gap Delta v(1) and any other gap Delta v(n) is known.

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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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8.


    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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9.


    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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10.


    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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