Magnetization reversal in epitaxial highly anisotropic CoFe2O4 hetero-structures
Magnetization reversal in epitaxial highly anisotropic CoFe2O4 hetero-structures
复制标题
外延高度各向异性 CoFe2O4 异质结构中的磁化反转
DOI：
10.1063/1.4917184
复制
发表时间：
2015
影响因子：
3.2
通讯作者：
M. Wuttig
中科院分区：
文献类型：
--
作者：
A. Lisfi;S. Pokharel;W. Morgan;L. Salamanca;M. Wuttig
通过磁滞回线和DCD剩磁曲线的角度研究，研究了在(110)MgO衬底上生长的钴铁氧体外延薄膜的磁化反转。这些薄膜的矫顽力和切换场的角度依赖关系强烈地偏离了通常已知的相干和非相干旋转模式的角度依赖关系。然而，对这些角度曲线的最佳拟合表明，磁化壁形核是这些异质结构中磁化反转的合适模式。
Magnetization reversal in epitaxial cobalt ferrite films grown on (110) MgO substrate has been investigated through angular studies of hysteresis loop and DCD remanence curve. The angular dependences of the coercivity and the switching field of these films strongly deviate from those typically known for coherent and incoherent rotation modes. However, the best fit for these angular curves suggests that domain wall nucleation is the appropriate mode for the magnetization reversal in these hetero-structures.