Magnetic properties of Co/Rh (001) multilayers studied by x-ray magnetic-circular dichroism

被引：18
作者：
Tomaz, MA [1 ]
Mayo, E
Lederman, D
Hallin, E
Sham, TK
O'Brien, WL
Harp, GR
机构：
[1] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA
[2] W Virginia Univ, Morgantown, WV 26506 USA
[3] Univ Wisconsin, Canadian Synchrotron Radiat Facil, Stoughton, WI 53589 USA
[4] Univ Western Ontario, Dept Chem, London, ON NA6 5B7, Canada
[5] Univ Wisconsin, Ctr Synchrotron Radiat, Stoughton, WI 53589 USA
来源：
PHYSICAL REVIEW B | 1998年 / 58卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.58.11493
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The layer-averaged magnetic moments of Co and Rh have been measured in sputter deposited Co/Rh (001) multilayer thin films using the x-ray magnetic circular dichroism. The Rh moments were measured at both the L and M absorption edges, where we find that the Rh moment decreases as a function of increasing Rh layer thickness (t(Rh)) The decline of the layer-averaged Rh moment is well described in terms of a simple dilution, implying that the Rh moment is confined to the interfacial region. We find that the Co moment remains largely unaffected, maintaining a bulklike value of 1.7 mu(B) in the region preceding the first antiferromagnetic coupling peak where t(Rh), ranges from 0 to 4 Angstrom. We also find, via application of the dichroism sum rules, that the ratio [L-z]/[S-z] for Co increases approximate to 10% for this same region. Finally, we contrast the magnetic behavior of the Co/Rh (001) and Fe/Rh (001) multilayer systems. [S0163-1829(98)07641-3].
引用
收藏
页码：11493 / 11500
页数：8
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