Gaussian superconducting fluctuations, thermal transport, and the nernst effect.
We calculate the contribution of superconducting fluctuations to thermal transport in the normal state, at low magnetic fields. We do so in the Gaussian approximation to their critical dynamics which is also the Aslamazov-Larkin approximation in the microscopics. Our results for the thermal conductivity tensor and the transverse thermoelectric response are new. The latter compare favorably with the data of Ong and collaborators on the Nernst effect in the cuprates.
Ussishkin
Iddo
I
Department of Physics, Princeton University, Princeton, New Jersey 08544, USA.
Sondhi
S L
SL
Huse
David A
DA