EVIDENCE OF A SURFACE-MEDIATED MAGNETICALLY INDUCED MISCIBILITY GAP IN CO-PT ALLOY THIN-FILMS

被引：114

作者：

ROONEY, PW

SHAPIRO, AL

TRAN, MQ

HELLMAN, F

机构：

[1] Department of Physics, University of California at San Diego, San Diego

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.75.1843

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

(100) and (111) oriented single-crystal CoPt3 films were deposited over a range of growth temperatures from -50 to 800 degrees C. The Curie temperature is increased by 200 degrees C over the value expected for the homogeneous alloy in the as-deposited films (of both orientations) grown near 400 degrees C. We interpret this as evidence for a previously unobserved, surface-mediated, magnetically driven miscibility gap in vapor-deposited CoPt3 films. Large perpendicular magnetic anisotropy is also observed in the as-deposited films (of both orientations) grown near 400 degrees C.

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页码：1843 / 1846

页数：4

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