Thermoelectric Power of Organic Superconductors —Calculation on the Basis of the Tight-Binding Theory

Abstract

Thermoelectric power of organic superconductors, β-(BEDT–TTF)₂I₃ and (BEDT–TTF)₂Cu(NCS)₂ (BEDT–TTF: bis(ethylenedithio)-tetrathiafulvalene) is calculated by the integration of the Boltzmann equation on the basis of the two-dimensional tight-binding band models. This calculation provides the interpretation of the observed complicated temperature dependence and anisotropy of the thermoelectric power and a tool estimating the transfer integrals.