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26 April 2024

» arxiv » arxiv.0705.1555

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Effective anisotropy of thin nanomagnets: beyond the surface anisotropy approach
Jean-Guy Caputo ; Yuri Gaididei ; Volodymyr P. Kravchuk ; Franz G. Mertens ; Denis D. Sheka ;
Date:	10 May 2007
Subject:	Strongly Correlated Electrons (cond-mat.str-el)
Abstract:	We study analytically and numerically the dipolar induced anisotropy for thin nanomagnets. We propose a simple approximation reducing the dipolar interaction to an effective nonhomogeneous anisotropy. This generalizes the results of the surface anisotropy. We illustrate this on several examples which show good agreement between spin--lattice simulations with this effective anisotropy and micromagnetic simulations.
Source:	arXiv, arxiv.0705.1555
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