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Enhancement of giant magnetoresistance due to spin mixing in magnetic multilayers with a superconducting contact

Taddei, F. and Sanvito, S. and Lambert, C. J. (2001) Enhancement of giant magnetoresistance due to spin mixing in magnetic multilayers with a superconducting contact. Physical Review B, 63 (1). -. ISSN 1098-0121

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Abstract

We study the giant magnetoresistance (GMR) ratio in magnetic multilayers wit a single superconducting contact in the presence of spin-mixing processes. It has been recently shown [F. Taddei, S. Sanvito, J.H. Jefferson, and C. J. Lambert, Phys, Rev. Lett, 82, 4938 (1999)] that the GMR ratio of magnetic multilayers is strongly suppressed by the presence of a super conducting contact when spin flipping is not allowed. In this paper we demonstrate that the GMR ratio can be dramatically enhanced by spin-orbit interaction and/or noncollinear magnetic moments. The system is described using a tight-binding model with either s-p-d or s-d atomic orbitals per site.

Item Type: Article
Journal or Publication Title: Physical Review B
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 576
Deposited By: Prof Colin J. Lambert
Deposited On: 04 Jul 2007
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 08:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/576

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