Large Kerr rotation in ordered CrPt3 films
Large Kerr rotation in ordered CrPt3 films
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有序 CrPt3 薄膜中的大克尔旋转
DOI：
10.1063/1.371181
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发表时间：
1999
影响因子：
3.2
通讯作者：
S. Tsunashima
中科院分区：
文献类型：
--
作者：
Jaekyong Cho;Moonki Park;Hyung Sik Kim;T. Kato;S. Iwata;S. Tsunashima
CrPt3 薄膜是通过使用磁控溅射器沉积 Cr/Pt 多层膜并随后进行热处理来制备的。研究了薄膜的小角度和广角 X 射线衍射图、磁滞回线和克尔旋转角光谱。薄膜具有AuCu3型有序合金结构以及平行于薄膜表面的强、弱择优取向{111}和{100}面。研究发现CrPt3薄膜表现出垂直于薄膜表面的磁各向异性，矫顽力高达3.7 kOe，在1100 nm处最大克尔旋转角为0.65度。讨论了大克尔旋转的起源。
CrPt3 films have been prepared by depositing Cr/Pt multilayers using a magnetron sputterer followed by heat treatment. Small and wide angle x-ray diffraction diagrams, magnetic hysteresis loops, and Kerr rotation angle spectra of the films have been investigated. The films had AuCu3 type ordered alloy structure and strong and weak preferred orientation of {111} and {100} planes parallel to the film surface. It was found that CrPt3 films showed the perpendicular magnetic anisotropy to the film surface, large coercivity of 3.7 kOe, and maximum Kerr rotation angle of 0.65 degrees at about 1100 nm. The origin of the large Kerr rotation was discussed.