Effects of Ru underlayer on microstructures and magnetic properties of Co72Pt28 thin films

被引：12

作者：

Pandey, K. K. M. ^{[1
]}

Chen, J. S. ^{[1
]}

Lim, B. C. ^{[2
]}

Chow, G. M. ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 119260, Singapore

[2] Data Storage Inst, Singapore 117608, Singapore

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 07期

关键词：

D O I：

10.1063/1.2990052

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effects of Ru underlayer on crystallographic structure, microstructures, and magnetic properties of Co72Pt28 films were investigated. It was observed that Ru deposition pressure played a more important role in determining the crystallographic texture compared to Ru thickness. Ru had a preferred (0002) texture when deposited at low Ar pressure and induced perpendicular magnetic anisotropy for Co72Pt28. However, at high Ar pressure, Ru (10 (1) over bar0) and Ru (10 (1) over bar1) peaks appeared that changed the easy axes of magnetization of Co72Pt28 film from out-of-plane to in-plane directions. With increasing thickness of Ru top layer in the dual-layer structure of Ru underlayer, coercivities increased due to increased magnetic anisotropy and reduced intergranular magnetic interaction. (c) 2008 American Institute of Physics. [DOI: 10.1063/1.2990052]

引用

页数：8

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