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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zakharov Yu. V., Mankov Yu. I., Titov L. S.
Заглавие : Anisotropy of the magnetoresistance along and across domain-walls in a ferromagnet
Место публикации : J. Phys. I. - 1991. - Vol. 1, Is. 5. - P.759-764. - ISSN 1155-4304
Примечания : Cited References: 20
Предметные рубрики: SUPERCONDUCTIVITY
HOMO6S8
Аннотация: We discuss some peculiarities of the conduction electron motion in the vicinity of domain walls which lead to an anisotropy of the magnetoresistance. We also discuss the case of single crystals of ErRh4B4 and HoMo6S8 where magnetoresistance with the same qualitative features has been observed.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mankov Yu. I.
Заглавие : Bulk plasma waves in a randomly inhomogeneous conductor
Место публикации : Phys. Solid State: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 54, Is. 7. - P.1323-1331. - ISSN 1063-7834, DOI 10.1134/S1063783412070268
Примечания : Cited References: 27
Предметные рубрики: VOLUME PLASMONS
DISPERSION
PLASMAVERLUSTES
SURFACE
Аннотация: The modification of the spectrum and damping of bulk plasma waves due to three-dimensional random inhomogeneities of the density of a degenerate electron gas in a conductor have been investigated using the averaged Green’s function method. The dependences of the frequency and damping of the averaged plasma waves, as well as the position ν m and width Δν of the peak of the imaginary part of the Fourier trans-form of the averaged Green’s function, on the wave vector k have been determined in the self-consistent approximation, which makes it possible to take into account multiple scattering of plasma waves by inhomogeneities. It has been found that, in the long-wavelength region of the spectrum, the decrease revealed in the frequency of the plasma waves is caused by the inhomogeneities, which agrees qualitatively with the behavior of the position of the peak ν m . In the range of large values of the correlation length of inhomogeneities and small values of k, the damping of the plasma waves tends to zero, whereas the width of the peak Δν remains finite, which is due to the nonuniform broadening. A comparison with the data of numerical calculations has been performed.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zakharov Yu. V., Mankov Yu. I., Titov L.S.
Заглавие : Eelectric-conductivity of a metallic ferromagnet and magnetization process
Место публикации : Phys. Status Solidi B. - 1988. - Vol. 149, Is. 1. - P.241-248. - ISSN 0370-1972, DOI 10.1002/pssb.2221490126
Примечания : Cited References: 14
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mankov Yu.I., Khlebopros R. G.
Заглавие : Effect of the shape of an antiferromagnetic nanoparticle on its magnetization
Место публикации : Tech. Phys.: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 57, Is. 5. - P.733-734. - ISSN 1063-7842, DOI 10.1134/S1063784212050209
Примечания : Cited References: 21
Предметные рубрики: DES GRAINS FINS
Аннотация: The dependence of the magnetization of an antiferromagnetic nanoparticle on its shape is studied in terms of a core-shell model. The magnetizations of a nanodisk, nanowire, and spherical particle are shown to differ several fold.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Yu. I.
Заглавие : Effects of inhomogeneities with extended correlations on the spin wave spectrum in nanocrystals and superlattices
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2008): June 20-25, 2008, Moscow : book of abstract. - 2008. - Ст.24TL-F-3. - p.581-582
Примечания : These works were supported by the Grant of the RF President, SS-3818.2008.3.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mankov Yu. I.
Заглавие : Electromagnetic waves in a randomly inhomogeneous Josephson junction
Место публикации : Tech. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2011. - Vol. 56, Is. 8. - P1147-1157. - ISSN 1063-7842, DOI 10.1134/S1063784211080172
Примечания : Cited References: 23
Предметные рубрики: DYNAMICS
Аннотация: Spectrum modification and damping of Josephson plasma waves induced by random inhomogeneities of the critical current through the superconductor contact and the averaged Green function of such excitations are analyzed. In the self-consistent approximation that makes it possible to take into account multiple wave scattering on the inhomogeneities, the frequency and damping of averaged waves, as well as position nu (m) and peak width Delta nu of the Fourier transform imaginary part of the averaged Green function, are determined as functions of wavevector k. The evolution of such functions with the variation of the correlation radius and the relative r.m.s. fluctuations of inhomogeneities is studied. The inhomogeneity-induced wave frequency decrease observed in the long wavelength spectral region qualitatively agrees with the nu (m) behavior. It is established that in the case of "long-range" inhomogeneities, the linear dependence of damping on k changes to the inversely proportional one, and damping tends to zero as k - 0, while Delta nu at small k attains its maximal values due to nonuniform broadening. In the presence of "short-range" inhomogeneities, the wave damping and Delta nu are found to be similar functions of k. The results are compared to the numerical calculation data.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mankov Y. I.
Заглавие : Electromagnetic waves with a negative group velocity in a randomly inhomogeneous Josephson junction
Место публикации : Phys. Solid State. - 2013. - Vol. 55, Is. 5. - P.924-929. - ISSN 1063-7834, DOI 10.1134/S1063783413050223
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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mankov Yu. I.
Заглавие : Electron surface levels in metallic ferromagnets
Место публикации : Fiz. Tverd. Tela. - 1981. - Vol. 23, Is. 8. - P.2508-2512. - ISSN 0367-3294
Примечания : Cited References: 8
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Man'kov Yu. I., Tsikalov D. S.
Заглавие : High-frequency susceptibility of a multilayered ferromagnetic system with two-dimensional inhomogeneities
Место публикации : Phys. Solid State. - NEW YORK: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2010. - Vol. 52, Is. 3. - С. 544-553. - MAR. - ISSN 1063-7834, DOI 10.1134/S1063783410030157
Примечания : 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]
Предметные 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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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Yu. I., Tsikalov D. S.
Заглавие : High-frequency susceptibility of superlattices with two dimensional inhomogeneities
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2008): June 20-25, 2008, Moscow : book of abstract. - 2008. - Ст.21PO-16-16. - p.113-114
Примечания : This work was partially supported by the Grant of the RF President, SS – 3818.2008.3
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mankov Yu. I.
Заглавие : Longitudinal electromagnetic-waves in metal in oblique magnetic-field near the cyclotron-resonance
Место публикации : Fiz. Tverd. Tela. - 1980. - Vol. 22, Is. 2. - P.408-412. - ISSN 0367-3294
Примечания : Cited References: 9
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zakharov Yu. V., Mankov Yu. I.
Заглавие : Magnetoresistance of ferromagnets with domain-structure
Место публикации : Phys. Status Solidi B. - 1984. - Vol. 125, Is. 1. - P.197-205. - ISSN 0370-1972, DOI 10.1002/pssb.2221250122
Примечания : Cited References: 21
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zakharov Y. V., Mankov Y. I., Titov L.S.
Заглавие : Negative low-temperature magnetoresistance of a magnetically nonuniform compensated metal
Место публикации : Fiz. Nizk. Temp. - 1986. - Vol. 12, Is. 4. - P.408-416. - ISSN 0132-6414
Примечания : Cited References: 24
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Yu. I., Rakhmanov F. V.
Заглавие : Plasma-waves in a randomly inhomogeneous metal
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz. - 1981. - Vol. 81, Is. 5. - P.1771-1780. - ISSN 0044-4510
Примечания : Cited References: 23
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Gurevich Y. L., Mankov Yu.I., Khlebopros R. G.
Заглавие : Self-assembly of superparamagnetic ferrihydrite nanoparticles
Коллективы : Russian Foundation for Basic Research [08-08-00427_a, 10-08-00278_a]; Siberian Branch, Russian Academy of Sciences, Integration project [21]
Место публикации : Dokl. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2013. - Vol. 58, Is. 11. - P.478-481. - ISSN 1028-3358, DOI 10.1134/S1028335813110104
Примечания : Cited References: 15. - This work was supported by the Russian Foundation for Basic Research, project nos. 08-08-00427_a and 10-08-00278_a, and by the Siberian Branch, Russian Academy of Sciences, Integration project no. 21.
Предметные рубрики: CHAINS
CLUSTERS
Аннотация: A study was conducted to estimate the possibility of formation of chains of superparamagnetic nanoparticles of iron oxyhydroxides synthesized in a bacteria culture. The self-assembly of biogenic nanoparticles distinguished by low values of magnetization and small sizes is assumed to proceed due to the forces of magnetic dipole dipole interaction as an initial mechanism of aggregation and exchange-interaction forces, which provide the stability of chains. The microphotographs demonstrate the self-assembly of anisotropic cobalt-doped ferrihydrite nanoparticles in aggregates of ellipsoidal shape with sizes of about 550 × 300 nm and a platelike shape of 50-100 nm thick. The aggregates, in turn, are combined from blocks, which include a restricted number of nanoparticles of about 5 nm in diameter and have the shape of rods of 50-100 × 12 nm in size. The energy of degaussing fields of chains is reasonably high, which forces them to form two and three dimensional structures in which the compensation of such fields is provided.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Mankov Yu. I., Gorenko L. M., Khlebopros R. G.
Заглавие : Slowly decaying waves near cyclotron-resonance in metallic ferromagnets located in an inclined magnetic-field
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz. - 1981. - Vol. 81, Is. 6. - P.2180-2191. - ISSN 0044-4510
Примечания : Cited References: 20
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Berman G. P., Mankov Y. I., Sadreev A. F.
Заглавие : Stochastic-instability of classical homogeneous SU(2) by U(1) fields with spontaneously broken symmetry
Место публикации : Zhurnal Eksperimentalnoi Teor. Fiz. - 1985. - Vol. 88, Is. 3. - P.705-714. - ISSN 0044-4510
Примечания : Cited References: 19
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18.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Mankov Yu. I.
Заглавие : The effect of correlation-properties of inhomogeneities on plasma excitations in a metal
Разночтения заглавия :авие SCOPUS: The effect of correlation properties of inhomogeneities on plasma excitations in a metal
Место публикации : J. Phys.: Condens. Matter: IOP PUBLISHING LTD, 1991. - Vol. 3, Is. 31. - P.5837-5845. - ISSN 0953-8984, DOI 10.1088/0953-8984/3/31/007
Примечания : Cited References: 21
Предметные рубрики: SPIN-WAVES
ANISOTROPY
Аннотация: We theoretically investigate the manifestations of the non-monotonic character and anisotropic peculiarities of the correlation functions of the inhomogeneities in the dispersion law and damping of plasma waves. The following specific effects have been found: a change in the character of the modifications, dispersion law and damping for small wavenumbers; dependence of the plasma frequency shift on the direction of the wave propagation. We substantiate possibilities for developing the correlation spectroscopy of plasma waves which would enable us not only to measure a correlation radius of the inhomogeneities (this has been suggested earlier), but also to obtain information in the form of the correlation function.
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Маньков, Юрий Иннокентьевич, Хлебопрос, Рэм Григорьевич
Заглавие : Влияние формы антиферромагнитной наночастицы на ее намагниченность
Место публикации : Журн. техн. физ. - 2012. - Т. 82, Вып. 5. - С. 157-158. - ISSN 0044-4642
Примечания : Библиогр.: 21 назв.
ГРНТИ : 29.19.22
Аннотация: В модели ядро-оболочка изучена зависимость намагниченности антиферромагнитной наночастицы от ее формы. Показано, что намагниченности нанодиска, нанопроволоки и сферической частицы могут отличаться в несколько раз.
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20.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Игнатченко, Вальтер Алексеевич, Маньков, Юрий Иннокентьевич, Цикалов, Денис Сергеевич
Заглавие : Высокочастотная восприимчивость сверхрешетки с двумерными неоднородностями
Место публикации : Журн. эксперим. и теор. физ. - 2008. - Т. 134, Вып. 4. - С. 706-715
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