Thermoelectric effects in a Luttinger liquid

Citation
Iv. Krive et al., Thermoelectric effects in a Luttinger liquid, LOW TEMP PH, 27(9-10), 2001, pp. 821-830
Citations number
39
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
LOW TEMPERATURE PHYSICS
ISSN journal
1063777X → ACNP
Volume
27
Issue
9-10
Year of publication
2001
Pages
821 - 830
Database
ISI
SICI code
1063-777X(200109/10)27:9-10<821:TEIALL>2.0.ZU;2-X
Abstract
Thermoelectric effects in a Luttinger liquid (LL) wire adiabatically connec ted to the leads of noninteracting electrons are considered. For a multicha nnel LL a staircase-like behavior of the thermal conductance as a function of chemical potential is found. The thermopower for a LL wire with an impur ity is evaluated for two cases: (i) LL constriction, and (ii) infinite LL w ire. We show that the thermopower is described a Mott-like formula renormal ized by an interaction-dependent factor. For an infinite LL the renormaliza tion factor decreases with increase of the interaction. However, for a real istic situation, when a LL wire is connected to the leads of noninteracting electrons (LL constriction), the repulsive electron-electron interaction e nhances the thermopower. A nonlinear Peltier effect in a LL is briefly disc ussed. (C) 2001 American Institute of Physics.