Temperature dependent magnetic properties of highly chemically ordered Fe55-xNixPt45L10 films

被引：208

作者：

Thiele, JU ^{[1
]}

Coffey, KR ^{[1
]}

Toney, MF ^{[1
]}

Hedstrom, JA ^{[1
]}

Kellock, AJ ^{[1
]}

机构：

[1] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2002年 / 91卷 / 10期

关键词：

D O I：

10.1063/1.1470254

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic media using materials with high uniaxial magneto-crystalline anisotropy, K-U, combined with a thermal assist to overcome write field limitations have been proposed as one of the potential technologies to extend the areal density of magnetic disk recording beyond the limitations of current technology. Here we present an investigation on structural and temperature dependent magnetic properties of chemically ordered epitaxial Fe55-xNixPt45 thin films. Increasing Ni additions result in a steady reduction of magneto-crystalline anisotropy, saturation magnetization, and Curie temperature. The ability to control thermomagnetic properties over a wide range makes Fe55-xNixPt45 and similar FePt-based pseudo-binary alloys attractive base materials for media applications in thermally assisted magnetic recording. (C) 2002 American Institute of Physics.

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页码：6595 / 6600

页数：6

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