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arXiv · 1211.5525

Pumping charge with ac magnetic fluxes and the dynamical breakdown of Onsager symmetry

María Florencia Ludovico·Liliana Arrachea
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Abstract

We study the transport properties of setups with one and two mesoscopic rings threaded by ac magnetic fluxes of the form \Phi(t)=\Phi^{dc} + \Phi^{ac} cos(\Omega_0 t + \delta) and connected to two different particle reservoirs. We analyze the conditions to generate a pumped dc current in the adiabatic regime. We also study the symmetry properties of the induced dc current as a function of the static component of the flux, \Phi^{dc}, with and without a dc bias voltage applied at the reservoirs. We analyze, in particular, the validity of the Onsager-Casimir relations for different configurations of the setups.

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María Florencia Ludovico, Liliana Arrachea. 2012-11-23. Pumping charge with ac magnetic fluxes and the dynamical breakdown of Onsager symmetry. https://doi.org/10.1103/physrevb.87.115408

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