# Thermopower of quantum Hall states in Corbino geometry as a measure of quasiparticle entropy

@article{Barlas2012ThermopowerOQ,
title={Thermopower of quantum Hall states in Corbino geometry as a measure of quasiparticle entropy},
author={Yafis Barlas and Kun Woo Yang},
journal={Physical Review B},
year={2012},
volume={85}
}
• Published 2012
• Physics
• Physical Review B
• Using the Onsager relation between electric and heat transport coefficients, and considering the very different roles played by the quantum Hall condensate and quasiparticles in transport, we argue that near the center of a quantum Hall plateau thermopower in a Corbino geometry measures {\it "entropy per quasiparticle per quasiparticle charge"}. This relation indicates that thermopower measurement in a Corbino setup is a more direct measure of quasiparticle entropy than in a Hall bar. Treating… CONTINUE READING