Electron theory of perpendicular magnetic anisotropy of Co-ferrite thin films

Electron theory of perpendicular magnetic anisotropy of Co-ferrite thin films
复制标题

钴铁氧体薄膜垂直磁各向异性的电子理论

DOI:
10.1063/1.4866279
复制
发表时间:
2014
期刊:
影响因子:
1.6
通讯作者:
E. Kita
E. Kita
中科院分区:
材料科学4区
文献类型:
--
作者:
J. Inoue;T. Niizeki;H. Yanagihara;H. Itoh;E. Kita

文献摘要

参考文献

被引文献

相似文献

通过考虑Co ~(2+)离子周围的局域对称性和Co ~(2+)薄膜的整体四重对称性所引起的自旋轨道相互作用(SOI)和晶场势(CF),建立了Co ~(2+)离子t2 g电子的电子理论,阐明了Co铁氧体薄膜的垂直磁各向异性(PMA)机制.单轴和面内MA常数Ku和K1在0 K,分别计算了各种值的SOI和CF。我们表明,合理的参数值解释所观察到的PMA和轨道矩的面内磁化减少到近一半的面外磁化。
We develop an electron theory for the t2g electrons of Co2+ ions to clarify the perpendicular magnetic anisotropy (PMA) mechanism of Co-ferrite thin films by considering the spin-orbit interaction (SOI) and crystal-field (CF) potentials induced by the local symmetry around the Co ions and the global tetragonal symmetry of the film. Uniaxial and in-plane MA constants Ku and K1 at 0 K, respectively, are calculated for various values of SOI and CF. We show that reasonable parameter values explain the observed PMA and that the orbital moment for the in-plane magnetization reduces to nearly half of that of the out-of-plane magnetization.
Sr2M04(M=Ru、Rh、Mo) 中巨大的本征自旋和轨道霍尔效应
DOI: --
发表时间: 2008
期刊: Phys. Rev. Lett. Vol.100
影响因子: --
作者:
Hiroshi Kontani;et. al.
通讯作者: et. al.