Fe/Rh (100) multilayer magnetism probed by x-ray magnetic circular dichroism

被引：29

作者：

Tomaz, MA

Ingram, DC

Harp, GR

Lederman, D

Mayo, E

OBrien, WL

机构：

[1] W VIRGINIA UNIV,DEPT PHYS,MORGANTOWN,WV 26506

[2] UNIV WISCONSIN,CTR SYNCHROTRON RADIAT,STOUGHTON,WI 53589

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.56.5474

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the layer-averaged magnetic moments of both Fe and Rh in sputtered Fe/Rh (100) multilayer thin films as measured by x-ray magnetic circular dichroism. We observe two distinct regimes in these films. The first is characterized by Rh moments of at least 1 mu(B), Fe moments enhanced as much as 30% above bulk, and It bet cryst;tl structure. The second regime is distinguished by sharp declines of both Fe and Rh moments accompanied by a transition to an fct crystal lattice. The demarcation between the two regions is identified as the layer thickness for which both bet and fct phases first coexist, which we term the critical thickness t(crit). We attribute the change in magnetic behavior to the structural transformation.

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页码：5474 / 5483

页数：10

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