Low-Temperature Magnetic Properties of Co Antidot Array
LIU Qing-Fang, JIANG Chang-Jun, FAN Xiao-Long, WANG Jian-Bo, XUE De-Sheng
Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University, Lanzhou 730000
Low-Temperature Magnetic Properties of Co Antidot Array
LIU Qing-Fang;JIANG Chang-Jun;FAN Xiao-Long;WANG Jian-Bo;XUE De-Sheng
Key Laboratory for Magnetism and Magnetic Materials of MOE, Lanzhou University, Lanzhou 730000
关键词 ：
75.75.+a ,
75.50.Cc
Abstract ： Cobalt antidot arrays with different thicknesses are fabricated by rf magnetron sputtering onto porous alumina substrates. Scanning electron microscopy and grazing incidence x-ray diffraction are employed to characterize the morphology and crystal structure of the antidot array, respectively. The temperature dependence of magnetic properties shows that in the temperature range 5K--300K, coercivity and squareness increase firstly, reach their maximum values, then decrease. The anomalous temperature dependences of coercivity and squareness are discussed by considering the pinning effect of the antidot and the magnetocrystalline anisotropy.
Key words ：
75.75.+a
75.50.Cc
出版日期: 2006-06-01
引用本文:
LIU Qing-Fang;JIANG Chang-Jun;FAN Xiao-Long;WANG Jian-Bo;XUE De-Sheng. Low-Temperature Magnetic Properties of Co Antidot Array[J]. 中国物理快报, 2006, 23(6): 1592-1595.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I6/1592
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