Shot noise in the presence of spin-flip scattering

AUTOR(ES)

Brito, F.G., Egues, J.C.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2002-06

RESUMO

Shot noise is a time-dependent current uctuation due to the discrete character of the electron charge. Here we address shot noise in a spin-resolved tunneling system under the influence of spin-flip scattering within a master equation approach. We find that the average current áIñ and Fano factor gamma("normalized noise") present contrasting behavior for differing spin-flip time ratios: áIñ decreases while gamma increases for > as compared to the = case and vice versa for < .

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