OSCILLATORY PARAMAGNETIC MAGNETOOPTICAL KERR-EFFECT IN RU WEDGES ON CO

被引：28
|
作者：
CARL, A
WELLER, D
机构：
[1] IBM Research Division, Almaden Research Center, San Jose, CA 95120
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 01期
关键词：
D O I：
10.1103/PhysRevLett.74.190
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Sharp, quantum-well-like resonances in the field dependent polar magneto-optical Kerr effect of evaporated Ru wedges on perpendicularly magnetized Co as a function of the Ru thickness are reported. This effect selectively measures free electronic excitations in Ru and is, via the Pauli paramagnetic susceptibility, proportional to the free electron density of states at the Fermi level. A peak separation of 1.2 nm agrees with long period indirect magnetic exchange coupling oscillations in perpendicular Co/Ru-wedge/Co sandwiches. © 1994 The American Physical Society.
引用
收藏
页码：190 / 193
页数：4
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