LARGE FINITE-SIZE EFFECT OF GIANT MAGNETORESISTANCE IN MAGNETIC GRANULAR THIN-FILMS

被引：33

作者：

WANG, JQ

XIAO, G

机构：

[1] Department of Physics, Brown University, Providence

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.51.5863

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have observed a finite-size effect of giant magnetoresistance (GMR) and extraordinary Hall effect (EHE) in Co20Ag80 and Fe20Ag80 granular thin films of varying thickness. The GMR approaches zero as the thicknness approaches zero. The thickness dependence of GMR can be explained by a dimensional-confinement effect coupled with a large surface-induced spin-flipping cross section. The EHE exhibits a strong correlation with GMR, which is likely due to the surface-induced spin-orbit interaction. © 1995 The American Physical Society.

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页码：5863 / 5867

页数：5

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