Microstructure and magnetization reversal of L1(0)-FePt/[Co/Pt](N) exchange coupled composite films
Microstructure and magnetization reversal of L1(0)-FePt/[Co/Pt](N) exchange coupled composite films
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DOI：
10.1063/1.3700865
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发表时间：
2012-04
影响因子：
4
通讯作者：
H. Guo;J. Liao;B. Ma;Zhuang-jian Zhang;Q. Jin;Hao Wang;Jianguo Wang
中科院分区：
文献类型：
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作者：
H. Guo;J. Liao;B. Ma;Zhuang-jian Zhang;Q. Jin;Hao Wang;Jianguo Wang
采用直流磁控溅射法制备了两个系列的垂直交换耦合复合材料(ECC)薄膜，分别为FePt(5)/[Co(0.2)/Pt(0.3)]N(ECC-I-N)和FePT(5)/[Co(0.2)/Pt(0.6)]N(ECC-II-N)。结构分析表明，在(001)取向的[Co/Pt]N[Co/Pt]N(200)取向的L10FePT岛状颗粒上外延生长。随着[Co/Pt]N厚度的增加，两个系列样品的矫顽力Hc和剩余矫直力Hcr均显著降低，Hcr表现出良好的角度公差。
Two series of perpendicular exchange coupled composites (ECC) films are prepared by dc magnetron sputtering, FePt(5)/[Co(0.2)/Pt(0.3)]N (ECC-I-N) and FePt(5)/[Co(0.2)/Pt(0.6)]N (ECC-II-N), respectively. Structure analyses reveal the epitaxial growth on (001) oriented L10 FePt island-like grains of [Co/Pt]N with (200) orientation. Coercivity HC and remanent coercivity HCR of both series samples decrease sharply compared to FePt, with the increase of the thickness of [Co/Pt]N. The angular dependence of HCR shows excellent angular tolerance.