Magnetic field induced gap and kink behavior of thermal conductivity in cuprates
Jan, 2001Citations per year
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 . The kink is due to the opening of a gap in the QP spectrum at a critical magnetic field and to the enhancement of the transitions between the zeroth and first Landau levels. Possible applications of the results are discussed.- superconductivity
- quasiparticle: gap
- four-fermion interaction
- magnetic field: external field
- fermion: mass generation
- catalysis: magnetic
- Jona-Lasinio-Nambu model
- dimension: 3
- numerical calculations
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