Dephasing Effects by Ferromagnetic Boundary on Resistivity in Disordered Metallic Layer

Details Dephasing Effects by Ferromagnetic Boundary on Resistivity in Disordered Metallic Layer Dephasing Effects by Ferromagnetic Boundary on Resistivity in Disordered Metallic Layer

1999-02-18

arxiv.org/abs/cond-mat/9902256v1

J. Phys. Soc. Jpn. 69, 2407 (2000)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 3 figures. Title modified in journal version

Scientific paper

The resistivity of disordered metallic layer sandwiched by two ferromagnetic layers at low-temperature is investigated theoretically. It is shown that the magnetic field acting at the interface does not affect the classical Boltzmann resistivity but causes a dephasing among electrons in the presence of the spin-orbit interaction, suppressing the anti-localization due to the spin-orbit interaction. The dephasing turns out to be stronger in the case where the magnetization of the two layers is parallel, contributing to a positive magnetoresistance close to a switching field at low temperature.

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