Abstract:
A possibility of appearing a disordered Imry–Ma state induced by fluctuations of the anisotropy easy axis direction in a nanocrystalline sample in the case of a weak exchange interaction between crystallites has been studied. A phase diagram of the system has been built in variables “the characteristic crystallite size–the exchange integral of the intercrystallite interaction.” The characteristic value of statistic fluctuations of the crystallographic anisotropy has been estimated, and the dependences of the coercive field on the crystallite size have been found for systems of various space dimensions.
Citation:
A. A. Berzin, A. I. Morozov, A. S. Sigov, “The Imry–Ma phase in a nanocrystalline ferromagnet”, Fizika Tverdogo Tela, 60:9 (2018), 1689–1692; Phys. Solid State, 60:9 (2018), 1733–1736
\Bibitem{BerMorSig18}
\by A.~A.~Berzin, A.~I.~Morozov, A.~S.~Sigov
\paper The Imry--Ma phase in a nanocrystalline ferromagnet
\jour Fizika Tverdogo Tela
\yr 2018
\vol 60
\issue 9
\pages 1689--1692
\mathnet{http://mi.mathnet.ru/ftt9071}
\crossref{https://doi.org/10.21883/FTT.2018.09.46385.050}
\elib{https://elibrary.ru/item.asp?id=36903685}
\transl
\jour Phys. Solid State
\yr 2018
\vol 60
\issue 9
\pages 1733--1736
\crossref{https://doi.org/10.1134/S1063783418090056}
Linking options:
https://www.mathnet.ru/eng/ftt9071
https://www.mathnet.ru/eng/ftt/v60/i9/p1689
This publication is cited in the following 2 articles:
A. S. Sigov, I. V. Gladyshev, A. N. Yurasov, “Nanoelectronics and nanotechnology: promising approaches in the educational process”, Rossijskij tehnologičeskij žurnal, 10:4 (2022), 93
A.B. Drovosekov, N.M. Kreines, A.S. Barkalova, S.N. Nikolaev, V.V. Rylkov, A.V. Sitnikov, “Mechanisms of FMR line broadening in CoFeB-LiNbO3 granular films in the vicinity of metal-insulator transition”, Journal of Magnetism and Magnetic Materials, 495 (2020), 165875