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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ignatchenko V. A., Pozdnyakov A. V.
Заглавие : Spectral properties of superlattices with anisotropic inhomogeneities. The transition from 3D to 2D disorder
Коллективы : Moscow International Symposium on Magnetism
Место публикации : Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P.597-600. - ISBN 1012-0394, DOI 10.4028/www.scientific.net/SSP.190.597. - ISBN 9783037854365
Ключевые слова (''Своб.индексиров.''): anisotropic inhomogeneities--dos--green function--superlattice--susceptibility--waves--anisotropic inhomogeneities--continuous transitions--correlation properties--density of state--dynamic susceptibility--inhomogeneities--spectral properties--wave numbers--dos--green's function--magnetic materials--magnetic susceptibility--superlattices--three dimensional--waves--anisotropy
Аннотация: Waves in superlattice (SL) contained inhomogeneities with anisotropic correlation properties are considered. The anisotropy of the correlation during the transition from 3D to 2D disorder is characterized by the parameter ? 1 = k ||/k?-1, where k || and k? are the correlation wave numbers along the axis of the SL and in the plane of the its layers, respectively (r || =k || -1 and r?=k?-1 are the correlation radii). Dependencies of both the dynamic susceptibility and density of states at the continuous transition from the isotropic three-dimensional inhomogeneities (? 1 = 0) to the twodimensional ones (? 1 = -1) have been obtained. В© (2012) Trans Tech Publications.
Scopus
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Tsikalov D. S.
Заглавие : Spin-wave spectrum in the sinusoidal superlattice with amplitude and phase inhomogeneities
Коллективы : Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism
Место публикации : Solid State Phenom.: Selected, peer reviewed papers/ ed.: S. G. Ovchinnikov, A. Samardak: Trans Tech Publications, 2014. - Vol. 215: Trends in Magnetism: Nanomagnetism (EASTMAG-2013). - P.385-388. - ISSN 978-303835054-5, DOI 10.4028/www.scientific.net/SSP.215.385. - ISSN 1662-9779
Примечания : Cited References: 6
Ключевые слова (''Своб.индексиров.''): dos--dynamic susceptibility--inhomogeneities--spin waves--superlattices
Аннотация: Effects of both the phase and the amplitude inhomogeneities of different dimensionalities on the Green's function and on the one-dimensional density of states of spin waves in the sinusoidal superlattice have been studied. Processes of multiple scattering of waves from inhomogeneities have been taken into account in the self-consistent approximation. © (2014) Trans Tech Publications, Switzerland.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ignatchenko V. A., Pozdnyakov A. V.
Заглавие : Spectral Properties of Superlattices with Anisotropic inhomogeneities. The Transition from 3D to 1D Disorder
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : TRENDS IN MAGNETISM. Ser. Solid State Phenomena/ Euro-Asian Symposium "Trends in MAGnetism": Nanospintronics (4 ; 2010 ; 28 June-2 July ; Ekaterinburg): TRANS TECH PUBLICATIONS LTD, 2011. - Vol. 168-169. - P.85-88. - ISBN 1012-0394, DOI 10.4028/www.scientific.net/SSP.168-169.85
Примечания : Cited References: 4
Ключевые слова (''Своб.индексиров.''): superlattice--waves--anisotropic inhomogeneities--green's function--susceptibility--dos
Аннотация: Waves in the superlattice (SL) contained inhomogeneities with anisotropic correlation properties are considered. The anisotropy of the correlations is characterized by the parameter lambda=1-k(perpendicular to)/k(parallel to), where k(parallel to) and k(perpendicular to) are the correlation wave numbers along the axis of the SL and in the plane of its layers, respectively (r(parallel to) = k(parallel to)(-1) and r(perpendicular to) = k(perpendicular to)(-1) are the correlation radii). Dependencies of both the dynamic susceptibility and density of states at the continuous transition from the isotropic three-dimensional inhomogeneities (lambda=0) to the one-dimensional ones (lambda=1) have been obtained.
WOS
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ignatchenko V. A., Pozdnyakov A. V.
Заглавие : Spectral properties of superlattices with anisotropic inhomogeneities. The transition from 3D to 1D disorder
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2011. - Vol. 168-169. - P.85-88. - ISSN 1012-0394, DOI 10.4028/www.scientific.net/SSP.168-169.85. - ISSN 9783037850213
Ключевые слова (''Своб.индексиров.''): anisotropic inhomogeneities--dos--green's function--superlattice--susceptibility--waves--anisotropic inhomogeneities--continuous transitions--correlation properties--density of state--dynamic susceptibility--inhomogeneities--spectral properties--susceptibility--wave numbers--differential equations--magnetic susceptibility--superlattices--three dimensional--anisotropy
Аннотация: Waves in the superlattice (SL) contained inhomogeneities with anisotropic correlation properties are considered. The anisotropy of the correlations is characterized by the parameter ? = 1-k? / k ?, where k ? and k? are the correlation wave numbers along the axis of the SL and in the plane of its layers, respectively (r ? k ?-1 and r? = k?-1 are the correlation radii). Dependencies of both the dynamic susceptibility and density of states at the continuous transition from the isotropic three-dimensional inhomogeneities (? = 0 ) to the one-dimensional ones (? =1) have been obtained.
Scopus,
http://www.scopus.com/inward/record.url?eid=2-s2.0-79951935984&partnerID=40&md5=7897afbfe65d66e8eb402827cc610bd1
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Ignatchenko V. A., Tsikalov D. S.
Заглавие : Combined Effects of 2D and 3D Inhomogeneities on the Dynamic Susceptibility of Superlattices
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", Russian Acad Sci, Inst Metal Phys
Место публикации : TRENDS IN MAGNETISM. - STAFA-ZURICH: TRANS TECH PUBLICATIONS LTD, 2011. - Vol. 168-169. - С. 97-100. - (Solid State Phenomena). - ISBN 1012-0394, DOI 10.4028/www.scientific.net/SSP.168-169.97
Примечания : Cited Reference Count: 10
Предметные рубрики: Materials Science, Multidisciplinary
Physics, Condensed Matter
Ключевые слова (''Своб.индексиров.''): 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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