Micromagnetic studies of Fe/Co ellipses with competing anisotropy contributions

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:272

Article

Felton, S. ; Gunnarsson, K. ; Svedlindh, P. ; Hanson, M. ; Kazakova, O.

关键词: Fe/Co multilayer;    competing anisotropy;    MFM;    domain structure;   

DOI  :  10.1016/j.jmmm.2003.12.428

来源: Elsevier

【 摘 要 】

The effects of competing magneto-crystalline and shape anisotropies on magnetization reversal were studied in situ in arrays of sub-micron Fe/Co ellipses of compositions Fe2/Co6 and Fe8/Co3 with magnetic force microscopy (MFM). A simple model assigning magnetization values to the different types of domain structures observed in the MFM images was used to estimate the field dependence of the total magnetization of a sample. The agreement with macroscopic magnetization measurements is discussed. (C) 2004 Elsevier B.V. All rights reserved.

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