OSCILLATORY INTERLAYER MAGNETIC COUPLING OF SPUTTERED FE/MO SUPERLATTICES

被引：61
|
作者：
BRUBAKER, ME
MATTSON, JE
SOWERS, CH
BADER, SD
机构：
来源：
APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 20期
关键词：
D O I：
10.1063/1.104907
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Sputtered Fe/Mo superlattices grown on sapphire exhibit an oscillatory magnetic coupling as a function of Mo thickness. Ferromagnetic Fe layers 25 angstrom thick couple across the nonmagnetic Mo layers ferro- or antiferromagnetically with a period of approximately 11 angstrom Mo. Ferromagnetically aligned films show the anticipated trend in longitudinal Kerr-rotation values based on calculation, while the antiferromagnetically coupled films in zero field yield only weak Kerr signals due to their characteristically "pinched" hysteresis loops. The films are well ordered and exhibit up to seven low-angle, x-ray diffraction peaks, but have negative magnetoresistive anomalies that are only less-than-or-similar-to 2% at 4.2 K.
引用
收藏
页码：2306 / 2308
页数：3
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