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Title: Fluctuation relations for spintronics
Authors: López, Rosa, Lim, Jong-Soo, Sánchez, David
Issue Date: 13-Jun-2012
Publisher: American Physical Society
Abstract: Fluctuation relations are derived in systems where the spin degree of freedom and magnetic interactions play a crucial role. The form of the nonequilibrium fluctuation theorems relies on 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 microreversibility 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 edge states. © 2012 American Physical Society.
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Identifiers: doi: 10.1103/PhysRevLett.108.246603
issn: 0031-9007
Citation: Physical Review Letters 108(24): 246603 (2012)
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