节点文献

Co-Si合金膜的结构和磁光克尔效应

Structure and Magneto-Optical Kerr Effects of Co-si Alloy Films

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 蔡金华唐少龙都有为

【Author】 Cai Jinhua, Tang Shaolong, Du Youwei (National Laboratory of And State Microstructures and Department of Physics, Naming University, Nanjing, 210093,China)

【机构】 固体微结构国家实验室南京大学物理系!南京210093

【摘要】 用射频磁控溅射在衬底温度(Ts)为 400℃和室温(RT)两种情形制备了Co1-xSix(0.0≤X≤0.34)合金膜.X射线衍射结果表明在这些合金膜中出现了不同程度的hcp(002)取向.在室温下沉积的薄膜中,仅在x=0.0时有明显的hcp(002)取向.在400℃下沉积的薄膜中,随着硅含量x的增加,hcp(002)取向先是增强,继而在X=0.34时消失.相应与此的400℃下沉积的薄膜的θk(H)、(M(H))回线在x=0.23时出现了磁滞现象(Hc≈64kA/m),并且有大约20%的比剩余克尔旋转(比剩余磁化强度).同时,当X≤0.23,硅的加入使得钻硅合金的克尔旋转在蓝光及近紫外区相比于纯钻来说有所加强,其值约为-0.3°~-0.4°.

【Abstract】 Co1-xSix(0. 0≤<x≤0. 34) films were deposited at glass substrates by rf magnetron sputtering at 400℃ and room temperature. Moderate hcp (002) Orientation is found in the XRD patterns of these films. For the films grown at room temperaure, the hcp(002) orientation only appears in the film with x = 0. 23. For the films grown at 400℃, the orientation is enhanced with x, then disappears at x = 0. 34. Corresponding to the hcp (002) orientation, a remnat Kerr rotation (a remnant magnetization), which is 20% of saturated Kerr rotation (saturated magnetization), and a coercivity (about 64 kA/m) are found in Kerr rotation hysteresis (magnetization hysteresis) for Co77Si23 film grown at 400℃. While Si concentration x is below 0. 23, the Kerr rotation in Co-Si film is enhanced, compared with that in Co film in blue and near-violet light range, with a value about - 0. 30° ~ - 0. 40°.

【关键词】 Co一Si合金合金膜磁光克尔效应
【Key words】 Co-Si alloyalloy filmmagneto-optical Kerr effects
【基金】 国家95攀登预选计划“纳米材料科学”;国家重大基础研究项目!(G1999064508)
  • 【文献出处】 南京大学学报(自然科学版) ,Journal of Naijing University (Natural Sciences) , 编辑部邮箱 ,2001年01期
  • 【分类号】O482.55;O484.4
  • 【下载频次】126
节点文献中: 

本文链接的文献网络图示:

本文的引文网络