Fizika Nizkikh Temperatur: Volume 27, Number 9-10 (September 2001), p. 1110-1122    ( to contents , go back )

Thermo-electric effects in a Luttinger liquid

I. V. Krive

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Science of Ukraine 47 Lenin Ave., Kharkov 61103, Ukraine

I. A. Romanovsky

V. N. Karasin Kharkov National University, 4 Svobody Sq., Kharkov 61077, Ukraine

E. N. Bogachek, A. G. Scherbakov, and Uzi Landman

School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, USA
pos Анотація:

Received March 19, 2001


Thermoelectric effects in a Luttinger liquid (LL) wire adiabatically connected to the leads of noninteracting electrons are considered. For a multichannel LL a staircase-like behavior of the thermal conductance as a function of chemical potential is found. A thermopower for a LL wire with an impurity is evaluated for two cases: (i) LL constriction and (ii) infinite LL wire. We show that the thermopower is described a Mott-like formula renormalized by an interaction-dependent factor. For an infinite LL the renormalization factor decreases with increase of the interaction. However, for a realistic situation, when a LL wire is connected to the leads of noninteracting electrons (LL constriction), the repulsive electron-electron interaction enhances the thermopower. A nonlinear Peltier effect in a LL is briefly discussed.

73.23.-b - Electronic transport in mesoscopic systems
71.45.Lr - Charge-density-wave systems (see also 75.30.Fv Spin-density waves)
73.61.-r - Electrical properties of specific thin films (for optical properties of thin films, see 78.20.-e and 78.66.-w; for magnetic properties of thin films, see 75.70.-i)
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