OBSERVATION OF THICKNESS DEPENDENCE OF MAGNETIC SURFACE ANISOTROPY IN ULTRATHIN AMORPHOUS FILMS

被引：20

作者：

HICKEN, RJ

RADO, GT

XIAO, G

CHIEN, CL

机构：

[1] Department of Physics and Astronomy, The Johns Hopkins University, Baltimore

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.64.1820

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ferromagnetic resonance (FMR) and SQUID magnetometry measurements have been made on multilayers of amorphous Fe70B30/Ag. The dependence of the magnetic surface anisotropy constant Ks on the magnetic layer thickness 2L has been determined in the range 1.6 <2L<90 using more than twenty samples. It is found that Ks is constant for 2L>16.5, but decreases monotonically towards zero as 2L decreases from 16.5 towards zero. The FMR results can be well described by a theory developed for ultrathin amorphous ferromagnetic layers. © 1990 The American Physical Society.

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页码：1820 / 1823

页数：4

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