Role of magnetostatic interactions in micromagnetic structure of multiferroics

被引:21
作者
Armstrong, Jason N. [2 ]
Sullivan, M. R. [2 ]
Le Romancer, Maelane [2 ,3 ]
Chernenko, Volodymyr A. [4 ]
Chopra, Harsh Deep [1 ,2 ]
机构
[1] Natl Sci Fdn, Div Mat Res, Arlington, VA 22230 USA
[2] SUNY Buffalo, Dept Aerosp Engn & Mech, Mat Program, Thin Films & Nanosynth Lab, Buffalo, NY 14260 USA
[3] Univ Nantes, Ecole Polytech, Dept Mat Sci, F-44306 Nantes 03, France
[4] Inst Magnetism, UA-03142 Kiev, Ukraine
关键词
D O I
10.1063/1.2817640
中图分类号
O59 [应用物理学];
学科分类号
摘要
While it is well known that magnetoelastic coupling governs the magnitude of field-induced strain in magnetic shape memory alloys, the present study shows that the zero-field micromagnetic structure and the pathway leading to the field-induced strain is governed by magnetostatic coupling across martensite twins. The micromagnetic investigations reveal a new energy barrier to the motion of domain walls arising from magnetostatic coupling between walls across the twin planes. (C) 2008 American Institute of Physics.
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页数:5
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