Thermal conductivity of the 2+1-dimensional NJL model in an external magnetic field

Details Thermal conductivity of the 2+1-dimensional NJL model in an external magnetic field Thermal conductivity of the 2+1-dimensional NJL model in an external magnetic field

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..601..253f&link_type=abstract

THEORETICAL HIGH ENERGY PHYSICS: MRST 2001: A Tribute to Roger Migneron. AIP Conference Proceedings, Volume 601, pp. 253-258 (2

Physics

High Energy Physics

Nonconventional Mechanisms, Cuprate Superconductors, Transport Properties

Scientific paper

The thermal conductivity κ of a 2+1-dimensional NJL theory, proposed to modeling quasiparticle interactions around the nodes of a d-wave high-temperature superconductor, is calculated as a function of an externally applied magnetic field. Taking into account the dynamical generation of a gap that takes place in this theory at a critical field Bc(T)~T2, the magnetic-field-dependence of the thermal conductivity is found to exhibit a sharp break at Bc, followed by a region where κ becomes field independent (plateau region). These results qualitatively reproduce Krishana's et al. experimental observations of high Tc cuprates. .

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