Issue
EPL
Volume 86, Number 4, May 2009
Article Number 47007
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI http://dx.doi.org/10.1209/0295-5075/86/47007
Published online 04 June 2009
EPL, 86 (2009) 47007
DOI: 10.1209/0295-5075/86/47007

Nernst-Ettingshausen effect in two-component electronic liquids

A. A. Varlamov1 and A. V. Kavokin2, 3

1   COHERENTIA-INFM, CNR - Viale del Politecnico 1, I-00133 Rome, Italy, EU
2   Dipartimento di Fisica, Università “Tor Vergata" - Via della Ricerca Scientifica, I-00133 Rome, Italy, EU
3   Physics and Astronomy School, University of Southhampton - Highfield, Southampton, SO171BJ, UK, EU

varlamov@ing.uniroma2.it

received 26 March 2009; accepted in final form 4 May 2009; published May 2009
published online 4 June 2009

Abstract
A simple model describing the Nernst-Ettingshausen effect (NEE) in two-component electronic liquids is formulated. The examples considered include graphite, where the normal and Dirac fermions coexist, superconductor in fluctuating regime, with coexisting Cooper pairs and normal electrons, and the inter-stellar plasma of electrons and protons. We give a general expression for the Nernst constant and show that the origin of a giant NEE is in the strong dependence of the chemical potential on temperature in all cases.

PACS
74.40.+k - Fluctuations (noise, chaos, nonequilibrium superconductivity, localization, etc.).
72.15.Jf - Thermoelectric and thermomagnetic effects.
74.25.Fy - Transport properties (electric and thermal conductivity, thermoelectric effects, etc.).

© EPLA 2009