Influence of an Fe cap layer on the structural and magnetic properties of Fe49Pt51/Fe bi-layers

Influence of an Fe cap layer on the structural and magnetic properties of Fe49Pt51/Fe bi-layers
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DOI：
10.1088/1674-1056/18/6/074
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发表时间：
2009-06
期刊：
Chinese Physics B
影响因子：
1.7
通讯作者：
Duan Chao-yang;M. Bin;Wei Fu-lin;Zhang Zong-Zhi;Jin Qing-Yuan
Duan Chao-yang;M. Bin;Wei Fu-lin;Zhang Zong-Zhi;Jin Qing-Yuan
中科院分区：
物理与天体物理3区
文献类型：
--
作者：
Duan Chao-yang;M. Bin;Wei Fu-lin;Zhang Zong-Zhi;Jin Qing-Yuan

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研究了 Fe 盖层对 FePt/Fe 双层结构和磁性能的影响。与单一的FePt合金薄膜相比，薄的Fe层可以影响晶体取向并改善L10 FePt薄膜的化学有序性。此外，当薄 Fe 层覆盖 FePt 层时，矫顽力会增加。然而，超过临界厚度时，Fe 覆盖层通过交换耦合加速 Fe49Pt51/Fe 双层的磁化反转。
The influences of an Fe cap layer on the structural and magnetic properties of FePt/Fe bi-layers are investigated. Compared with single FePt alloy films, a thin Fe layer can affect the crystalline orientation and improve the chemical ordering of L10 FePt films. Moreover, the coercivity increases when a thin Fe layer covers the FePt layer. Beyond a critical thickness, however, the Fe cover layer quickens the magnetization reversal of Fe49Pt51/Fe bi-layers by their exchange coupling.