Low-temperature ordering and enhanced coercivity of L10-FePt thin film promoted by a Bi underlayer

被引：44

作者：

Feng, Chun ^{[1
]}

Li, Bao-He ^{[1
]}

Han, Gang ^{[1
]}

Teng, Jiao ^{[1
]}

Jiang, Yong ^{[1
]}

Liu, Quan-Lin ^{[1
]}

Yu, Guang-Hua ^{[1
]}

机构：

[1] Beijing Univ Sci & Technol, Dept Mat Phys & Chem, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 23期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2211052

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied L1(0)-FePt thin films with a Bi underlayer. Experimental results show that the ordering temperature of the L1(0)-FePt film can be lowered down to 300-350 degrees C and the in-plane coercivity H-C of the film is obviously enhanced by introduction of a Bi underlayer. After annealing at 400 degrees C for 20 min, a Bi/FePt film realizes a H-C of 13.5 kOe and the ratio of the remnant magnetization M-r to. the saturation one M-S of as high as 0.93. The reduction of the ordering temperature and the enhanced magnetic properties of L1(0)-FePt films can be understood by considering the large diffusivities of Fe and Pt associated with Bi diffusion. (c) 2006 American, Institute of Physics.

引用

页数：3

共 50 条

[21] Anomalous Temperature Dependence of Coercivity at Low Temperature in L10 FePt Thin Films [J].

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[22] The effect of Ag and Cu underlayer on the L10 ordering FePt thin films [J].

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[23] Tuning perpendicular magnetic anisotropy and coercivity of L10-FePt nanocomposite film by interfacial manipulation [J].

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[24] Low-temperature fabrication of high-coercivity L10 ordered FePt magnetic thin films by sputtering [J].

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[25] Low-temperature fabrication of high-coercivity L10 ordered FePt magnetic thin films by sputtering [J].

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[27] Fast magnetization precession observed in L10-FePt epitaxial thin film [J].

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[28] Composition dependence of L10 ordering of FePt (001) thin films on MgO underlayer grown at room temperature [J].

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[30] Effects of additive element and particle size on the atomic ordering temperature of L10-FePt nanoparticles [J].

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