Spin-polarized current induced in a single ferromagnetic strip due to inhomogeneous spin injection

T. Kimura, J. Hamrle, Y. Otani

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Abstract

We report that the inhomogeneous spin accumulation in a nonmagnetic layer induces the spin-polarized current flowing in a detector ferromagnetic strip lying underneath the nonmagnetic layer. In Ni-FeCu planar spin-valve structures, the induced spin-polarized current causes the spin-valve-like signal in the Ni-Fe wire without any boundary resistance in the CuNi-Fe junction. The relation between the inhomogeneous spin accumulation and the magnitude of the induced spin-valve-like signal is investigated by varying the width of the Cu wire.

Original languageEnglish
Article number076102
JournalJournal of Applied Physics
Volume97
Issue number7
DOIs
Publication statusPublished - Apr 1 2005
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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