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Noise and fluctuation relations of a spin diode

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arxiv 1305.2346 v1 pith:LN2PVVR7 submitted 2013-05-10 cond-mat.mes-hall cond-mat.stat-mech

Noise and fluctuation relations of a spin diode

classification cond-mat.mes-hall cond-mat.stat-mech
keywords fluctuationrelationsspinmagneticspintronictransportcoefficientsconsider
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We consider fluctuation relations between the transport coefficients of a spintronic system where magnetic interactions play a crucial role. We investigate a prototypical spintronic device (a spin-diode) which consists of an interacting resonant level coupled to two ferromagnetic electrodes. We thereby obtain the cumulant generating function for the spin transport in the sequential tunnelling regime. We demonstrate the fulfilment of the nonlinear fluctuation relations when up and down spin currents are correlated in the presence of both spin-flip processes and external magnetic fields.

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