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Studies on magnetic and magneto-optical properties of Pt976Mn26/Co multilayers

Chen Liang-Yao Liang Bing-Qing Wang Hai Tang Yun-Jun Wang Yin-Jun Zhou Xun

Studies on magnetic and magneto-optical properties of Pt976Mn26/Co multilayers

Chen Liang-Yao, Liang Bing-Qing, Wang Hai, Tang Yun-Jun, Wang Yin-Jun, Zhou Xun
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  • Received Date:  21 May 2002
  • Accepted Date:  02 July 2002
  • Published Online:  03 April 2005

Studies on magnetic and magneto-optical properties of Pt976Mn26/Co multilayers

  • 1. (1)复旦大学物理系,上海 200433; (2)中国科学院物理研究所磁学国家重点实验室,北京 100080; (3)中国科学院物理研究所磁学国家重点实验室,北京 100080;贵州师范大学物理与电子科学系,贵阳 550001

Abstract: A series of Co/Pt974Mn26(xPtMn nm)modulated multilayers with the thickness of PtMn layer x ranging from 096 to 168nm have been prepared by a magnetron sputtering system on 40nm thick PtMn buffer.With combined small-and large-angle x-ray analyses,the layered and crystal structure of the samples were investigated.Magnetic hysteresis loops and perpendicular magnetic anisotropy(PMA) were obtained by means of altermating-gradient magnetometer(AGM) and magnetic torque methods.Saturation magnetization,PMA and the Kerr spectrum of the samples were also investigated.Through analyses,we obtained the variation of Kerr rotation with the increase of PtMn thickness,which was ascribed to the reduction of the polarization of Pt atom and the interlayer alloys.

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