Statistics of irreversible displacements of domain walls in nanowires

Описание

Тип публикации: статья из журнала

Год издания: 2011

Идентификатор DOI: 10.1140/epjb/e2011-20137-7

Ключевые слова: Domain-wall pinning, Ferromagnets, Inhomogeneities, Initial susceptibility, Magnetization curves, Non-Gaussian, One-dimensional chains, Quasi-static displacement, Spatial fluctuation, Distribution functions, Nanowires, Random processes, Domain walls

Аннотация: The process of quasistatic displacement of domain walls is considered in a nanowire represented as a one-dimensional chain of ferromagnet crystallites. The domain wall pinning due to spatial fluctuations of the anisotropy axes is analyzed. Based on the theory of overshoots of random processes, we have calculated the distribution fuПоказать полностьюnctions of the initial susceptibility and of the maximal force of interaction of the domain wall with inhomogeneities. These functions are found to be non-Gaussian. We have derived expressions for the magnetization curve and the coercive force, which depend on the length of the chain.

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Издание

Журнал: EUROPEAN PHYSICAL JOURNAL B

Выпуск журнала: Vol. 83, Is. 1

Номера страниц: 83-91

ISSN журнала: 14346028

Место издания: NEW YORK

Издатель: SPRINGER

Авторы

  • Ivanov A.A. (Siberian Federal University)
  • Orlov V.A. (Krasnoyarsk State Pedagogical University)
  • Podolsky N.N. (Krasnoyarsk State Pedagogical University)
  • Erementchouk M.V. (NanoScience Technology Center,University of Central Florida)

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