Spin-Flip Noise in a Multi-Terminal Spin-Valve

2003/07/03 by W. Belzig, M. Zareyan
Physics and Astronomy · #cond-mat.mes-hall #cond-mat.stat-mech

paper · pdf · doi:10.1103/physrevb.69.140407

published as Phys. Rev. B 69, 140407(R) (2004) · 4 pages, 3 figures

arxiv created 2003/07/03 · arxiv updated 2009/11/30

Abstract

We study shot noise and cross correlations in a four terminal spin-valve geometry using a Boltzmann-Langevin approach. The Fano factor (shot noise to current ratio) depends on the magnetic configuration of the leads and the spin-flip processes in the normal metal. In a four-terminal geometry, spin-flip processes are particular prominent in the cross correlations between terminals with opposite magnetization.

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