Abstract:
The efficiency of injection of charge carriers with a definite spin into a ferromagnetic material in the ferromagnet/nonmagnetic metal/ferromagnet three-layer structure is analyzed taking into account the contribution from the nonmagnetic layer. It is shown that in the Co/Cu/Fe structure, the efficiency of spin injection is several times higher than in the Co/Cu/Co symmetric structure. Optimal conditions of injection of charge carriers with a definite spin depending on the parameters of used material are established.
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