The mechanism of Ag top layer on the coercivity enhancement of FePt thin films

被引：10
|
作者：
Zhao, ZL
Ding, J [1 ]
Yi, JB
Chen, JS
Zeng, JH
Wang, JP
机构：
[1] Natl Univ Singapore, Dept Mat Sci, Singapore 119620, Singapore
[2] Natl Univ Singapore, Data Storage Inst, Singapore 117608, Singapore
[3] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 119260, Singapore
[4] Univ Minnesota, Dept Elect & Comp Engn, Ctr Micromagnet & Informat Technol, Minneapolis, MN 55455 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 10期
关键词：
D O I：
10.1063/1.1854332
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetic properties of the FePt thin films with a Ag top layer prepared by magnetron sputtering have been studied. With 4 nm Ag layer deposited right after the deposition of FePt layer, the ordering temperature of the L1(0) FePt phase decreased to 350 degrees C or below. X-ray photoelectron spectroscopy results indicate that Ag has diffused into the FePt layer when Ag was deposited at 350 degrees C, while Ag remains on the top of the FePt when Ag was deposited at room temperature. The Ag top layer deposited at 350 degrees C was also found to protect the FePt layer from oxidation. (c) 2005 American Institute of Physics.
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页数：3
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