標題: Unified picture of spin-dependent transport in GMR multilayered structures and bulk ferromagnetic alloys
作者: Schroeder, PA
Holody, P
Loloee, R
Vouille, C
Barthelemy, A
Fert, A
Hsu, SY
電子物理學系
Department of Electrophysics
關鍵字: 3d metals;magnetoresistance;multilayers;magnetic moments;spin-dependent scattering
公開日期: 1-Jan-1998
摘要: We have observed a positive (inverse) CPP-MR in magnetic multilayers of the forms: (a) ((X) under bar Y/Cu/Co/Cu)(n) with (X) under bar Y being the alloys <(Fe)under bar>Cr, <(Fe)under bar>V. <(Ni)under bar>Cr, <(Co)under bar>Cr, and (b) (Z/Cr/NiFe/Cr)(n) with Z = Fe and Co, For (a) the inverted results arise primarily from spin-dependent scattering in the bulk of the alloy, and are linked consistently to: (1) their magnetization: (2) band-structure calculations and (3) resistivity of bulk alloys. For (b) samples, the inverse MRs arise primarily from the scattering at the Fe/Cr and Co/Cr interfaces, Inverse MR for X/Y interfaces and X/Y alloys (eg. Fe/Cr and <(Fe)under bar>Cr) arises from the similarity of the matching problem of X and Y d levels at interfaces and in alloys. For all (X) under bar Y the CIP-MR was negative confirming that CIP-MR is strongly influenced by channeling effect and current inhomogenieties. (C) 1996 Elsevier Science B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/S0304-8853(97)00366-1
http://hdl.handle.net/11536/83
ISSN: 0304-8853
DOI: 10.1016/S0304-8853(97)00366-1
期刊: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume: 177
Issue: 
起始頁: 1464
結束頁: 1465
Appears in Collections:Conferences Paper


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