Magnetic Field Induced Gap and Kink Behavior of Thermal Conductivity

Details Magnetic Field Induced Gap and Kink Behavior of Thermal Conductivity Magnetic Field Induced Gap and Kink Behavior of Thermal Conductivity

2001-01-28

arxiv.org/abs/hep-ph/0101308v3

Mod.Phys.Lett. B16 (2002) 107-116

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages,1 figure

Scientific paper

10.1142/S0217984902003555

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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