Spin-flip noise in a multiterminal spin valve

Authors :: Wolfgang Belzig
Malek Zareyan
Source :: Physical Review B. 69
Publication Year :: 2004
Publisher :: American Physical Society (APS), 2004.
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.<br />4 pages, 3 figures