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Crossed Andreev Reflection-Induced Magnetoresistance
2006
Physical Review Letters
We show that very large negative magnetoresistance can be obtained in magnetic trilayers in a current-in-plane geometry owing to the existence of crossed Andreev reflection. This spin-valve consists of a thin superconducting film sandwiched between two ferromagnetic layers whose magnetization is allowed to be either parallelly or antiparallelly aligned. For a suitable choice of structure parameters and nearly fully spin-polarized ferromagnets the magnetoresistance can exceed -80%. Our results
doi:10.1103/physrevlett.97.087001
pmid:17026324
fatcat:6evkha4xbvhstoed4wgyldkhma