Theory of Seebeck ratchet in noncentrosymmetric electron-phonon coupled system

Abstract

A thermoelectric effect of the noncentrosymmetric electron-phonon coupled system is proposed, in which a temperature difference between electrons and phonons, instead of a spatial temperature gradient, induces an electric current. This is a realization of Seebeck ratchet in solids with the asymmetric energy dispersion of electrons, and the dynamical phonons act as the fluctuation of the scalar potential and induce the dc current. Possible realizations of this mechanism are also discussed.

arXiv comment15 pages, 3 figures

References in corpus (11)

• Brownian motors: noisy transport far from equilibrium
• Theory of magnon-driven spin Seebeck effect
• Fundamental aspects of steady-state conversion of heat to work at the nanoscale
• Topological nature of nonlinear optical effects in solids
• Magnon, phonon and electron temperature profiles and the spin Seebeck effect in magnetic insulator/normal metal hybrid structures
• Ab initio optimization of phonon drag effect for lower-temperature thermoelectric energy conversion
• Entanglement and manipulation of the magnetic and spin-orbit order in multiferroic Rashba semiconductors
• Thermoelectric ratchet effect for charge carriers with hopping dynamics
• Unusual thermoelectric transport anisotropy in quasi-2D, rhombohedral GeTe
• Nanowire-based thermoelectric ratchet in the hopping regime
• Thermal generation of shift electric current