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Enhancement of GMR due to spin-mixing in magnetic multilayers with a superconducting contact

F. Taddei·S. Sanvito·C. J. Lambert
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Abstract

We study the Giant Magnetoresistance (GMR) ratio in magnetic multiayers with a single superconducting contact in the presence of spin-mixing processes. It has been recently shown that the GMR ratio of magnetic multilayers is strongly suppressed by the presence of a superconducting contact when spin-flipping is not allowed. In this Letter we demonstrate that the GMR ratio can be dramatically enhanced by spin-orbit interaction and/or non-collinear magnetic moments. The system is described using a tight-binding model with either s-p-d or s-d atomic orbitals per site.

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F. Taddei, S. Sanvito, C. J. Lambert. 2000-03-21. Enhancement of GMR due to spin-mixing in magnetic multilayers with a superconducting contact. https://doi.org/10.1103/physrevb.63.012404

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