Engineering domain structures in nanoscale magnetic thin films via strain

被引：15
|
作者：
Hu, Jia-Mian [1 ,2 ]
Yang, T. N. [3 ]
Chen, L. Q. [1 ,2 ,3 ]
Nan, C. W. [1 ,2 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
[2] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[3] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2013年 / 114卷 / 16期
基金：
美国国家科学基金会;
关键词：
PHASE-FIELD MODEL; ROOM-TEMPERATURE; MICROMAGNETICS; SIMULATIONS; REVERSAL; VOLTAGE; FERROELECTRICITY; NANOSTRUCTURES; FLUCTUATIONS; ELASTICITY;
D O I：
10.1063/1.4826491
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We study the strain effects on magnetic domain stability and dynamics in nanoscale magnetic thin films using phase-field simulations. Numerous strain-stabilized single-/multi-domain states are discovered, including various magnetic vortices with circular in-plane domains. Furthermore, a strain-domain stability map was constructed, displaying the stable magnetic domain and domain wall structures as a function of biaxial isotropic and anisotropic in-plane strains at room temperature. The present work provides useful guidelines for a precise engineering and experimental observation of domain structures in nanoscale magnetic thin films and a promising scheme towards a low-power and local control over magnetic domain structures. (C) 2013 AIP Publishing LLC.
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页数：9
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