Crossed Andreev Reflection in Structures Consisting of a Superconductor with Ferromagnetic Leads

Details Crossed Andreev Reflection in Structures Consisting of a Superconductor with Ferromagnetic Leads Crossed Andreev Reflection in Structures Consisting of a Superconductor with Ferromagnetic Leads

2003-07-13

arxiv.org/abs/cond-mat/0307307v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 9 figures

Scientific paper

10.1103/PhysRevB.68.174504

A theory of crossed Andreev reflection in structures consisting of a superconductor with two ferromagnetic leads is presented. The electric current due to the crossed Andreev reflection strongly depends on the relative orientation of the magnetization of two ferromagnetic leads. It is shown that the dependence of the electric current and the magnetoresistance on the distance between two ferromagnetic leads is understood by considering the interference between the wave functions in ferromagnets. The current and the magnetoresistance are calculated as functions of the exchange field and the height of the interfacial barriers.

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