The Nernst effect and the boundaries of the Fermi liquid picture

Details The Nernst effect and the boundaries of the Fermi liquid picture The Nernst effect and the boundaries of the Fermi liquid picture

2008-10-21

arxiv.org/abs/0810.3887v2

J. Phys.: Condens. Matter 21, 113101 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

Final version, Topical review for JPCM

Scientific paper

10.1088/0953-8984/21/11/113101

Following the observation of an anomalous Nernst signal in cuprates, the Nernst effect was explored in a variety of metals and superconductors during the past few years. This paper reviews the results obtained during this exploration, focusing on the Nernst response of normal quasi-particles as opposed to the one generated by superconducting vortices or by short-lived Cooper pairs. Contrary to what has been often assumed, the so-called Sondheimer cancelation does not imply a negligible Nernst response in a Fermi liquid. In fact, the amplitude of the Nernst response measured in various metals in the low-temperature limit is scattered over six orders of magnitude. According to the data, this amplitude is roughly set by the ratio of electron mobility to Fermi energy in agreement with the implications of the semi-classical transport theory.

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