Fluctuation Relations for Spintronics
Mesoscale and Nanoscale Physics
2012-06-21 v2 Statistical Mechanics
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.
Cite
@article{arxiv.1205.2266,
title = {Fluctuation Relations for Spintronics},
author = {Rosa Lopez and Jong Soo Lim and David Sanchez},
journal= {arXiv preprint arXiv:1205.2266},
year = {2012}
}
Comments
5 pages, 3 figures; minor changes; published version