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BELOBROV, P. I.
GROUND-STATE OF A DIPOLE SYSTEM IN A PLANE RHOMBIC LATTICE / P. I. BELOBROV, V. A. VOEVODIN, V. A. IGNATCHENKO // Zhurnal Eksperimentalnoi Teor. Fiz. - 1985. - Vol. 88, Is. 3. - P. 889-893. - Cited References: 6 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
VOEVODIN, V. A.; IGNATCHENKO, V. A.
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Bogomaz, I. V.
Spin-waves in amorphous anti-ferromagnets / I. V. Bogomaz, V. A. Ignatchenko, R. S. Iskhakov // Phys. Status Solidi B. - 1980. - Vol. 98, Is. 1. - P. 111-115, DOI 10.1002/pssb.2220980110. - Cited References: 6 . - ISSN 0370-1972

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович
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Combined effects of 2D and 3D inhomogeneities on high-frequency susceptibility of superlattices [Text] / V. A. Ignatchenko, D. S. Tsikalov // IV Euro-Asian Symposium "Trends in MAGnetism" Nanospintronics (EASTMAG-2010). School for young scientist "Spintronics" : June 28 - Lule 2, 2010"Book of abstracts. - Ekaterinburg, 2010. - P. 327

РИНЦ

Доп.точки доступа:
Ignatchenko, V.A.; Tsikalov, D.S.; Euro-Asian Symposium "Trends in MAGnetism"(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); "Trends in MAGnetism", Euro-Asian Symposium(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg)Уральское отделение РАН
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    Combined Effects of 2D and 3D Inhomogeneities on the Dynamic Susceptibility of Superlattices / V. A. Ignatchenko, D. S. Tsikalov // TRENDS IN MAGNETISM / . - STAFA-ZURICH : TRANS TECH PUBLICATIONS LTD, 2011. - Vol. 168-169. - P97-100. - (Solid State Phenomena), DOI 10.4028/www.scientific.net/SSP.168-169.97. - Cited Reference Count: 10 . - ISBN 1012-0394
Рубрики:
Materials Science, Multidisciplinary
   Physics, Condensed Matter
Кл.слова (ненормированные):
waves -- superlattices -- inhomogeneities -- dynamic susceptibility -- dos
Аннотация: The dynamic susceptibility and the one-dimensional density of states (DOS) of an initially sinusoidal superlattice (SL) with simultaneous presence of two-dimensional (2D) phase inhomogeneities that simulate the deformations of the interfaces between the SL's layers and three-dimensional (3D) amplitude inhomogeneities of the layer material of the SL were investigated. An analytical expression for the averaged Green's function of the sinusoidal SL with 2D phase inhomogeneities was obtained in the Bourret approximation. It was shown that the effect of increasing asymmetry of heights of the dynamic susceptibility peaks at the edge of the Brillouin zone of the SL, which was found in [6] at increasing the rms fluctuations of 2D inhomogeneities, also takes place at increasing the correlation wave number of such inhomogeneities. It was also shown that The increase of the tins fluctuations of 3D amplitude inhomogeneities in the superlattice with 2D phase inhomogeneities leads to the suppression of the asymmetry effect and to the decrease of the depth of the DOS gap.

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Держатели документа:
LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Tsikalov, D. S.; Цикалов, Денис Сергеевич; Euro-Asian Symposium "Trends in MAGnetism"(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); Russian Acad Sci, Inst Metal Phys
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Crossing resonance of two wave fields in disordered media / V. A. Ignatchenko [et al.] // Phys. Rev. B. - 1999. - Vol. 59, Is. 14. - P. 9185-9194, DOI 10.1103/PhysRevB.59.9185. - Cited References: 15 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
HARMONIC OSCILLATOR
POLARITONS
Аннотация: The interaction of two wave fields of different nature in a disordered medium with an arbitrary relation between the mean value P and rms fluctuation lambda of the coupling parameter is studied. A significant reconstruction of the eigenfrequencies, damping parameters, and susceptibilities of the system occurs when the situation changes from the model of a homogeneous medium (P not equal 0, lambda=0) to the model of the disorder-induced crossing resonance (P=0, lambda not equal 0). The concept of two effective media in the same material, which was introduced for the latter model in earlier work, is extended here to the case P not equal 0. [S0163-1829(99)10313-8].

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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Univ Calif Irvine, Irvine, CA 92697 USA
Seton Hall Univ, S Orange, NJ 07079 USA
ИФ СО РАН

Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Erementchouk, M. V.; Maradudin, A. A.; Deych, L. I.
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Deich, L. I.
Effect of spatial fluctuations of the magnetization modulus on the properties of amorphous ferromagnets / L. I. Deich, V. A. Ignatchenko // Zhurnal Eksperimentalnoi Teor. Fiz. - 1991. - Vol. 99, Is. 3. - P. 816-830. - Cited References: 27 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
TEMPERATURE-DEPENDENCE
   SPIN-WAVES
   FILMS
   SATURATION
   LAW
Аннотация: A model of amorphous ferromagnets with longwave spatial fluctuations of the magnetization modulus M is studied. It is shown that for a correct understanding of the properties of the model, it is principally necessary to take into account the magnetic dipole interaction. This interaction enhances the contribution of the fluctuations of M to the ground state, dispersion law and spin wave attenuation. The spectral and correlation properties of the inhomogeneous ground state and the law of approach of the magnetization to saturation in the model are studied. The dispersion law and spin wave attenuation are investigated. A novel mechanism of formation of a correction of the form T5/2 to the Bloch law in the low temperature dependence of the magnetization is proposed.

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Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Дейч, Лев Исаакович
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Deich, L. I.
Elastic and spin-waves in a nonuniformly deformed medium / L. I. Deich, V. A. Ignatchenko // Fiz. Tverd. Tela. - 1987. - Vol. 29, Is. 3. - P. 825-831. - Cited References: 12 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Дейч, Лев Исаакович
}
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Deich, L. I.
Elastic waves in random-heterogeneous ferromagnetics in magnetoelastic resonance / L. I. Deich, M. V. Eremenchuk, V. A. Ignatchenko // Zhurnal Eksperimentalnoi Teor. Fiz. - 1996. - Vol. 109, Is. 4. - P. 1370-1386. - Cited References: 5 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Eremenchuk, M. V.; Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Дейч, Лев Исаакович
}
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Deich, L. I.
Elastic-waves in local-isotropic amorphous medium / L. I. Deich, V. A. Ignatchenko // Fiz. Tverd. Tela. - 1985. - Vol. 27, Is. 6. - P. 1883-1885. - Cited References: 3 . - ISSN 0367-3294

10.

Deich, L. I.
Magnetoelastic resonance in random-nonhomogeneous ferromagnetics with zero medium magnetostriction / L. I. Deich, V. A. Ignatchenko // Zhurnal Eksperimentalnoi Teor. Fiz. - 1995. - Vol. 107, Is. 3. - P. 842-854. - Cited References: 14 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
amorphous ferromagnets
   spin-waves
   magnetization
   fluctuations
   saturation

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Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Дейч, Лев Исаакович
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11.

Deich, L. I.
Phonon spectroscopy of inhomogeneities in disordered solids / L. I. Deich, V. A. Ignatchenko // Solid State Commun. - 1991. - Vol. 80, Is. 10. - P. 881-884, DOI 10.1016/0038-1098(91)90525-Z. - Cited References: 15 . - ISSN 0038-1098

РУБ Physics, Condensed Matter
Рубрики:
SPIN-WAVES
   AMORPHOUS FILMS
   DISPERSION
   FERROMAGNETS
Аннотация: A possibility to use elastic waves for investigation of inhomogeneities corresponding in size to intermediate order in disordered solids is considered. It is shown that frequency dependencies of phase and group velocities of the elastic waves have some peculiarities which give the possibilities to find the characteristic size of inhomogenities and to determine the parameter of a matter whose fluctuations are most significant for the phenomena under study.

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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
ИФ СО РАН

Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Дейч, Лев Исаакович
}
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12.

Deich, L. I.
Polarization properties of elastic-waves in anisotropic disordered media / L. I. Deich, V. A. Ignatchenko ; ed.: M Meissner, er, M Meis // Phonon scattering in condensed matter : proceedings : Springer Verlag, 1993. - Vol. 112. - P. 231-232. - (Springer series in solid-state sciences). - Cited References: 0 . - ISBN 0171-1873. - ISBN 3-540-56395-4

РУБ Physics, Condensed Matter

WOS
Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Meissner, M \ed.\; Meis, er, M \ed.\; Дейч, Лев Исаакович; International Conference on Phonon Scattering in Condensed Matter(7 ; Aug 03-07, 1992 ; Ithaca, NY)
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13.

Effects of correlated inhomogeneities of the spectral properties of disordered ferro magnets and superlattices [Text] / V. A. Ignatchenko // IV Euro-Asian Symposium "Trends in MAGnetism" Nanospintronics (EASTMAG-2010). School for young scientist "Spintronics" : June 28 - Lule 2, 2010"Book of abstracts. - Ekaterinburg, 2010. - P. 300 (Invited)

РИНЦ

Доп.точки доступа:
Ignatchenko, V.A.; Euro-Asian Symposium "Trends in MAGnetism"(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg)"Trends in MAGnetism", Euro-Asian Symposium(4 ; 2010 ; Jun.-Jul. ; Ekaterinburg); Уральское отделение РАН
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14.

Effects of cross correlation between inhomogeneities of the exchange and anisotropy on the spin-wave spectrum [Text] / Ignatchenko V.A., Polukhin D.S. // Moscow Int. Symp. on Magnet. (MISM-2008) : June 20-25, 2008, Moscow : book of abstract. - 2008. - Ст. 23PO-12-12. - p. 516-517. - This work was supported by the Grant of the RF President, SS-3818.2008.3

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Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер, Алексеевич; Polukhin, D. S.; Полухин, Дмитрий, Сергеевич; Moscow International Symposium on Magnetism(4 ; 2008 ; Jun. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
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15.

Effects of cross correlation between inhomogeneities on the spectum and damping of spin and elastic waves (invited) [Text] / V. A. Ignatchenko // International Conference "Functional Materials" (ICFM-09) : book of abstracts : October 5-10, Ukraine, Crimea, Partenit. - 2009. - P281

Доп.точки доступа:
Ignatchenko, V.A.; "Functional Materials", International Conference(4 ; 2009 ; OCT ; Partenit, Crimea, Ukraine)
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16.

    Effects of cross correlations between inhomogeneities of the parameters of an isotropic medium on the spectrum and damping of elastic waves / V. A. Ignatchenko, D. S. Polukhin // J. Exp. Theor. Phys. - 2010. - Vol. 110, Is. 2. - P345-359, DOI 10.1134/S1063776110020184. - Cited Reference Count: 17. - Гранты: This study was supported in part by the Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools (grant no. 3818.2008.3) and the Presidium of the Russian Academy of Sciences (program no. 27.1) and performed within the framework of the Federal Target Program (State Contract no. 02.740.11.0220). - Финансирующая организация: Council on Grants from the President of the Russian Federation for the Support of Leading Scientific Schools [3818.2008.3]; Presidium of the Russian Academy of Sciences [27.1]; Federal Target Program [02.740.11.0220] . - FEB. - ISSN 1063-7761
   Перевод заглавия: ВЛИЯНИЕ КРОССКОРРЕЛЯЦИИ МЕЖДУ НЕОДНОРОДНОСТЯМИ ПАРАМЕТРОВ ИЗОТРОПНОЙ СРЕДЫ НА СПЕКТР И ЗАТУХАНИЕ УПРУГИХ ВОЛН
Кл.слова (ненормированные):
Cross correlations -- Dispersion law -- Elastic force -- Inhomogeneities -- Isotropic medium -- Negative cross-correlation -- Physical nature -- Two parameter -- Wave spectra -- Damping -- Dispersions -- Elastic waves -- Hamiltonians -- Dispersion (waves)
Аннотация: The dispersion and damping laws have been investigated for elastic waves in an isotropic medium with one- and three-dimensional inhomogeneities of the density p(x) of the material and the elastic force constants mu(x) and lambda(x) with allowance for the cross correlations between these inhomogeneities. It has been demonstrated that the positive cross correlations between mu(x) and lambda(x), as well as the negative cross correlations between p(x) and mu(x) or p(x) and lambda(x), lead to an enhancement of the modification of the dispersion law and an increase in the damping of waves. The positive cross correlations between p(x) and mu(x) or p(x) and lambda(x), as well as the negative cross correlations between mu(x) and lambda(x), result in the opposite effects: a weakening of the modification of the dispersion law and a decrease in the damping. An analysis of the results obtained in this paper and in our recent work [15] has made it possible to formulate the general regularity of the effects of cross correlations, irrespective of the physical nature of the waves: the effects of cross correlations between inhomogeneities of any two parameters of the material on the wave spectrum depend on whether both parameters related by the cross correlations belong to the same part of the Hamiltonian (i.e., if they both belong to either the kinetic part or the potential part of the Hamiltonian) or they belong to different parts of the Hamiltonian. The positive cross correlations lead to a greater modification of the dispersion law and to an increase in the damping of waves in the former case and to a decrease in these characteristics in the latter case. Correspondingly, the negative cross correlations in each of these cases result in the opposite effects. This regularity has been explained qualitatively.

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Оригинал на русском языке Влияние кросскорреляции между неоднородностями параметров изотропной среды на спектр и затухание упругих волн [Текст] / В. А. Игнатченко, Д. С. Полухин // Журнал экспериментальной и теоретической физики. - Москва : Федеральное государственное унитарное предприятие "Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Российской академии наук "Издательство "Наука", 2010. - Т. 137 № 2. - С. 390-405

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

Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Polukhin, D. S.; Полухин, Дмитрий Сергеевич
}
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17.

Effects of inhomogeneities with extended correlations on the spin wave spectrum in nanocrystals and superlattices / Ignatchenko V.A., Mankov Yu.I. // Moscow Int. Symp. on Magnet. (MISM-2008) : June 20-25, 2008, Moscow : book of abstract. - 2008. - Ст. 24TL-F-3. - p. 581-582. - These works were supported by the Grant of the RF President, SS-3818.2008.3.

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Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич; Mankov, Yu. I.; Маньков, Юрий Иннокентьевич; Moscow International Symposium on Magnetism(4 ; 2008 ; Jun. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
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18.

    Euro-asian symposium "Trends in magnetism" (EASTMAG-2004) : Abstract book / Рос. акад. наук, Сиб. отд-ние, Ин-т физики им. Л.В. Киренского, Краснояр. гос. ун-т, Краснояр. гос. технич. ун-т, Урал. отд-ние , Ин-т физики металлов. Euro-asian symp. "Trends in magnetism" ; предс. орг. комит. К. С. Александров ; зам. предс. С. Г. Овчинников ; чл. орг. комит. В. А. Игнатченко [и др.]. - Krasnoyarsk : [б. и.], 2004. - 418 с. - Bibliogr. at the end of the articles - Auth. ind. - 350 экз. - Б. ц.
Перевод заглавия: Евро-азиатский симпозиум "Прогресс в магнетизме"
Приложение:
Program of Euro-asian symposium "Trends in magnetism" (EASTMAG-2004). - Krasnoyarsk : Kirensky Instit. Phys. SB RAS, 2004. - 83
    Содержание:
Fundamental magnetic properties
Transport phenomena and spin electronics
Magnetism and strongly correleted electron systems
Spin glasses, disordered magnetic systems
Dynamics of spin systems and magnetic resonances
Magnetooptics and X-ray magnetooptics
Magnetic mechanism of the superconductivity
Domain structure and magnetization processes
Thin magnetic films and multilayers
Magnetic particles and nanocrystalline materials
Molecular magnetism
Magnetic storage/memory and applications
   Перевод заглавия: Евро-азиатский симпозиум "Прогресс в магнетизме"

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Александров, Кирилл Сергеевич \предс. орг. ком.\; Aleksandrov, K. S.; Овчинников, Сергей Геннадьевич \зам. предс.\; Ovchinnikov, S. G.; Игнатченко, Вальтер Алексеевич \чл. орг. ком.\; Ignatchenko, V. A.; Сапожников, В. \чл. орг. ком.\; Патрин, Геннадий Семёнович \чл. орг. ком.\; Patrin, G. S.; Вальков, Валерий Владимирович \чл. орг. ком.\; Val'kov, V. V.; Волков, Никита Валентинович \чл. орг. ком.\; Volkov, N. V.; Казак, Наталья Валерьевна \чл. орг. ком.\; Kazak, N. V.; Российская академия наук; Сибирское отделение РАН; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Красноярский государственный университет; Красноярский государственный технический университет; Институт физики металлов Уральского отделения РАН; Научный совет по физике конденсированных сред РАН; Научный совет РАН по физике низких температур; Красноярский научный центр Сибирского отделения РАН; Euro-asian symposium "Trends in magnetism" (2 ; 2004 ; Aug. 24-27 ; Krasnoyarsk); "Trends in magnetism", Euro-Asian Symposium (2 ; 2004 ; Aug. 24-27 ; Krasnoyarsk)
Свободных экз. нет}
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19.

Gekht, R. S.
Phase-transition in small ferromagnetic particle system / R. S. Gekht, V. A. Ignatchenko // Izvestiya Akademii Nauk SSSR Seriya Fizicheskaya. - 1980. - Vol. 44, Is. 7. - P. 1362-1366. - Cited References: 13 . - ISSN 0367-6765

РУБ Physics, Multidisciplinary

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Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич
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20.

Gekht, R. S.
Magnetic states in structures of space-periodic distributed ferromagnetic particles / R. S. Gekht, V. A. Ignatchenko // Fiz. Nizk. Temp. - 1981. - Vol. 7, Is. 9. - P. 1176-1183. - Cited References: 8 . - ISSN 0132-6414

РУБ Physics, Applied

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Доп.точки доступа:
Ignatchenko, V. A.; Игнатченко, Вальтер Алексеевич
}
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