双层
磁化
铁磁性
反铁磁性
自旋(空气动力学)
薄膜
联轴节(管道)
相变
磁晶各向异性
作者
H.C. Lyu,Zhao Yongzhou,Jie Qi,Guang Yang,Jiang Shen,J. Y. Zhang,B.K. Shao,Z.Z. Zhu,Yuanqing Sun,B. G. Shen,W.D. Qin,Y.Q. Guo,Shuanghai Wang
标识
DOI:10.1016/j.jmmm.2021.168019
摘要
Abstract Surface reconstruction is a common physical phenomenon, driving the atoms near the surface to form a different spacing or symmetry from the bulk atoms to minimize the free enthalpy of the system. The formation of an asymmetric (7 × 2) reconstruction was observed on (1 1 2)-oriented Fe surface, which may be related to the anisotropic strain distribution induced by lattice mismatch. The influence of reconstruction on in-plane magnetic anisotropy has been studied in epitaxial Fe/Co bilayers grown by molecular beam epitaxy. The evolutions of Co layer thickness-dependent magnetic anisotropy for reconstructed and unreconstructed configurations were investigated by magneto-optic Kerr effect technique. The most significant difference caused by reconstruction took place when tCo = 3 nm, showing a reconstruction-dependent in-plane spin reorientation transition with a rotation of 90°, which can be attributed to the dramatically enhanced magnetic interface anisotropy of Fe/Co bilayers.
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