Thermoelectric effects in strongly interacting quantum dot coupled to ferromagnetic leads

Details Thermoelectric effects in strongly interacting quantum dot coupled to ferromagnetic leads Thermoelectric effects in strongly interacting quantum dot coupled to ferromagnetic leads

2005-10-03

arxiv.org/abs/cond-mat/0510036v1

Phys. Rev. B 73, 075307 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 11 figures

Scientific paper

We study thermoelectric effects in Kondo correlated quantum dot coupled to ferromagnetic electrodes by calculating conductance, thermopower and thermal conductance in the Kondo regime. We also study the effect of the asymmetry in the coupling to the leads, which has important consequences for anti-parallel magnetization configuration. We discuss the thermoelectric figure of merit, tunnel magnetoresistance and violation of the Wiedemann-Franz law in this system. The results agree with recently measured thermopower of the quantum dot defined in a two dimensional electron gas.

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