Magnetic properties and L10 phase formation of FePt films prepared by high current-density ion-beam irradiation and rapid thermal annealing methods -: art. no. 10H306

被引:8
作者
Yokota, T
Yan, ML
Xu, YF
Gao, L
Zhang, R
Nicholl, L
Yuan, L
Skomski, R
Sellmyer, DJ
Liou, SH [1 ]
机构
[1] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA
[2] Univ Nebraska, Ctr Mat Res & Anal, Lincoln, NE 68588 USA
[3] Natl Tsing Hua Univ, Dept Mat Sci, Hsinchu 300, Taiwan
关键词
D O I
10.1063/1.1853018
中图分类号
O59 [应用物理学];
学科分类号
摘要
We investigated magnetic properties and L1(0) phase formation of FePt films by rapid thermal annealing (RTA) and high current-density ion-beam irradiation. The sample prepared by RTA at 550 degrees C has (001) texture and strong magnetic perpendicular anisotropy with H-c equal to 6 kOe. The sample irradiated at 5.04 mu A/cm(2) has H-c equal to 10 kOe but has isotropic magnetic properties due to the (111) texture. The magnetic correlation length of the ion-irradiated sample was about twice as large as that of the RTA sample. This may be due to the inhomogeneity of the L10 phase formation in the ion-irradiated film. (c) 2005 American Institute of Physics.
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页数:3
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