Ground State of the Magnetization of Nanowires

Описание

Тип публикации: статья из журнала

Год издания: 2010

Идентификатор DOI: 10.1134/S0031918X10020031

Ключевые слова: nanowire, magnetic anisotropy, magnetization, Magnetic anisotropy, Magnetization, Nanowire, Analytical and numerical methods, Average size, Coordinate changes, Crystallographic anisotropy, Effective anisotropy constant, Ferromagnetic crystallites, Free edge, Functional dependence, Crystallites, Crystallography, Dispersions, Ground state, Magnetization, Nanocrystalline alloys, Nanowires, Numerical methods, Single crystals, Magnetic anisotropy

Аннотация: Analytical and numerical methods have been used to study the ground state of magnetization of a nanowire consisting of ferromagnetic crystallites that are coupled via exchange interactions. The random nature of the field of crystallographic anisotropy has been taken into account. It is shown that the magnetization of a nanowire is Показать полностьюdivided into weakly interacting regions of magnetization called blocks. Such characteristics, as the average size of a magnetic block, its effective anisotropy constant, and their dependence on the size of crystallites have been calculated analytically and simulated numerically in a two-angle approximation. The coordinate dependences of the magnetization dispersion at the edge and in the bulk of the magnet have been determined. It is shown that the functional dependence of the dispersion on the coordinate changes with moving away from the free edge of the nanowire.

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Издание

Журнал: PHYSICS OF METALS AND METALLOGRAPHY

Выпуск журнала: Vol. 109, Is. 2

Номера страниц: 120-129

ISSN журнала: 0031918X

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Ivanov A.A. (Siberian Federal University)
  • Orlov V.A. (Krasnoyarsk State Pedagogical University)
  • Patrushev G.O. (Krasnoyarsk State Pedagogical University)
  • Podol'skii N.N. (Krasnoyarsk State Pedagogical University)

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