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Magnetic Field Induced Gap and Kink Behavior of Thermal Conductivity

E. J. Ferrer·V. P. Gusynin·V. de la Incera
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Abstract

The thermal conductivity of a quasiparticle (QP) system described by a relativistic four-fermion interaction model in the presence of an external magnetic field is calculated. It is shown that, for narrow width of quasiparticles, the thermal conductivity, as a function of the applied magnetic field, exhibits a kink behavior at a critical field $B_{c}\sim T^{2}$. The kink is due to the opening of a gap in the QP spectrum at a critical magnetic field $B_c$ and to the enhancement of the transitions between the zeroth and first Landau levels. Possible applications of the results are discussed.

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E. J. Ferrer, V. P. Gusynin, V. de la Incera. 2002-03-15. Magnetic Field Induced Gap and Kink Behavior of Thermal Conductivity. https://doi.org/10.1142/s0217984902003555

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