Edge Domain Walls in Ultrathin Exchange-Biased Films
Edge Domain Walls in Ultrathin Exchange-Biased Films
复制标题
超薄交换偏压薄膜中的边缘畴壁
DOI:
10.1007/s00332-019-09604-w
复制
发表时间:
2020
影响因子:
3
通讯作者:
Slastikov, Valeriy V.
中科院分区:
文献类型:
--
作者:
Lund, Ross G.;Muratov, Cyrill B.;Slastikov, Valeriy V.
We present an analysis of edge domain walls in exchange-biased ferromagnetic films appearing as a result of a competition between the stray field at the film edges and the exchange bias field in the bulk. We introduce an effective two-dimensional micromagnetic energy that governs the magnetization behavior in exchange-biased materials and investigate its energy minimizers in the strip geometry. In a periodic setting, we provide a complete characterization of global energy minimizers corresponding to edge domain walls. In particular, we show that energy minimizers are one-dimensional and do not exhibit winding. We then consider a particular thin-film regime for large samples and relatively strong exchange bias and derive a simple and comprehensive algebraic model describing the limiting magnetization behavior in the interior and at the boundary of the sample. Finally, we demonstrate that the asymptotic results obtained in the periodic setting remain true in the case of finite rectangular samples.
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DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
M. Rührig;W. Rave;A. Hubert
通讯作者:
A. Hubert
影响因子:
2.1
作者:
C. Muratov
通讯作者:
C. Muratov
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
A. DeSimone;R. Kohn;S. Müller;F. Otto
通讯作者:
F. Otto
DOI:
--
发表时间:
2005
期刊:
Proceedings of the Royal Society A
影响因子:
--
作者:
R. Kohn;V. Slastikov
通讯作者:
V. Slastikov
影响因子:
3.2
作者:
H. Cho;C. Hou;M. Sun;H. Fujiwara
通讯作者:
H. Fujiwara