Interface magnetometry in a (Fe6A/Ni24A)10 multilayer

被引:1
作者
Capelli, R
D'Addato, S
Gazzadi, GC
Pasquali, L
Verucchi, R
Nannarone, S
Dudzik, E
Mirone, A
Sacchi, M
机构
[1] Univ Modena & Reggio Emilia, INFM, I-41100 Modena, Italy
[2] Univ Modena & Reggio Emilia, Dipartimento Fis, I-41100 Modena, Italy
[3] SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England
[4] LURE, Orsay, France
关键词
atomic geometry; magnetic moment; XMCD;
D O I
10.1016/S0169-4332(01)00096-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The interplay between atomic geometry and magnetic properties of Fe atoms at the Fe-Ni(1 1 1) interface was studied. To this end dichroic optical absorption and reflectivity (both in energy and theta -2 theta angular scan mode) were carried out in the L-2,L-3 edge region of Fe in (Fe-6 (Angstrom)/Ni-24 (Angstrom)(1 1 1))(10) multilayer while the atomic geometry of the Fe site at the interface was studied for 1 atomic layer of Fe on Ni(1 1 1) by photo-electron diffraction tin angular scan mode and back-scattering regime). The Fe atom was found to be chemisorbed in an fee hollow site and to stack pseudomorphically to Ni(1 1 1). Its magnetic moment was found to be in the range 2.9 +/- 0.9-1.93 +/- 0.6 mu (B). Possibility of surface anisotropy is discussed. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:281 / 287
页数:7
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