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arXiv · 1205.2266

Fluctuation Relations for Spintronics

Rosa Lopez·Jong Soo Lim·David Sanchez
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Abstract

Fluctuation relations are derived in systems where the spin degree of freedom and magnetic interactions play a crucial role. The form of the non-equilibrium fluctuation theorems relies in the assumption of a local balance condition. We demonstrate that in some cases the presence of magnetic interactions violates this condition. Nevertheless, fluctuation relations can be obtained from the micro-reversibility principle sustained only at equilibrium as a symmetry of the cumulant generating function for spin currents. We illustrate the spintronic fluctuation relations for a quantum dot coupled to partially polarized helical edges states.

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Rosa Lopez, Jong Soo Lim, David Sanchez. 2012-06-20. Fluctuation Relations for Spintronics. https://doi.org/10.1103/physrevlett.108.246603

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