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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (20): 1871-1874. 上一篇    下一篇

研究论文

电结晶制Co/Pt多层膜的结构及磁性研究

印仁和*，曾绍海，曹为民，董晓明   

  1. (上海大学理学院化学系 上海 200444)
  • 投稿日期:2005-01-27 修回日期:2005-06-29 发布日期:2010-12-10
  • 通讯作者: 印仁和

Structure and Magnetic Properties of Electrodeposited Co/Pt Multilayers

YIN Ren-He*, ZENG Shao-Hai, CAO Wei-Min, DONG Xiao-Ming   

  1. (Department of Chemistry, School of Science, Shanghai University, Shanghai 200444)
  • Received:2005-01-27 Revised:2005-06-29 Published:2010-12-10
  • Contact: YIN Ren-He

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被引次数

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以单晶Si(111)为基底, 在以P盐[主要成分Pt(NO2)2(NH3)2]和CoSO4为主盐的硼酸体系中电结晶Co/Pt多层膜. SEM观察多层膜的断面形貌, 证实多层膜具有周期结构. 经XRD测试, 首次证实了Co-Pt界面上有CoPt3化合物的存在. 用PPMS测试了多层膜的磁滞回线, 平行于外磁场时膜的矫顽力约为165 Oe, 垂直于外磁场时的矫顽力随Co含量的增加而增加, 最大达到396 Oe. 首次用电结晶方法制得了易磁化轴垂直于膜面的Co/Pt多层膜.

关键词: 电化学结晶, 多层膜, X射线衍射, 磁滞回线, 垂直磁各向异性

The Co/Pt multilayers film was deposited on monocrystal Si(111) using electrocrystallization in boric acid system, in which Pt(NO2)2(NH3)2 and CoSO4 were used as main salts. The cross section morphology of the multilayers was characterized by SEM method. The results showed that a periodically layered structure was obtained by electrodeposition. In Co/Pt interface, CoPt3 was found by middle angle X-ray diffraction method. The hysteresis loop of the multilayers was determined by PPMS method. The result showed that the coercivity of multilayers was about 165 Oe parallelly, and the coercivity in perpendicular increased with the content of Co, 396 Oe at a maximun. The Co/Pt multilayer with the easy-magnetization axis perpendicular to the face of layers was firstly prepared by electrocrystallization method.

Key words: electrocrystallization, multilayer, X-ray diffraction, hysteresis loop, perpendicular magnetic anisotropy