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GdFeCo/DyFeCo交换耦合两层薄膜磁化方向转变的研究

Yuepin Zhang,Xianying Wang,Gengqi Lin,Zhen Li,Zuoyi Li,Defang Shen,FuXi Can

Wuli Xuebao/Acta Physica Sinica（2004）

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Abstract
用磁控溅射法制备了GdFeCo/DyFeCo交换耦合两层薄膜,对交换耦合两层薄膜变温磁化方向进行了研究.结果表明读出层GdFeCo随温度上升从平面磁化转变成垂直磁化,转变过程中主要受饱和磁矩(Ms)的影响.在GdFeCo的补偿温度附近,读出层的磁化强度近于零,退磁场能减小,并在交换耦合的作用下,使读出层的磁化方向发生转变,制备的交换耦合两层薄膜具有中心孔磁超分辨效应.
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Key words
Exchange-coupled double layers,Magnetization,Magneto-optical recording
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