A microscopic mechanism for increasing thermoelectric efficiency

Details A microscopic mechanism for increasing thermoelectric efficiency A microscopic mechanism for increasing thermoelectric efficiency

2010-05-26

arxiv.org/abs/1005.4744v1

Chem. Phys. 375 (2010) 508

Physics

Condensed Matter

Statistical Mechanics

18 pages, 4 figures

Scientific paper

10.1016/j.chemphys.2010.06.009

We study the coupled particle and energy transport in a prototype model of interacting one-dimensional system: the disordered hard-point gas, for which numerical data suggest that the thermoelectric figure of merit ZT diverges with the system size. This result is explained in terms of a microscopic mechanism, namely the local equilibrium is characterized by the emergence of a broad stationary "modified Maxwell-Boltzmann velocity distribution", of width much larger than the mean velocity of the particle flow.

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