Comment on "Magnetic quantum oscillations of the conductivity in layered conductors"
arXiv:cond-mat/0509026 · doi:10.1103/PhysRevB.74.247101
Abstract
We discuss the recent theory of Gvozdikov [Phys. Rev. B 70, 085113 (2004)] which aims at explaining the Shubnikov-de Haas oscillations of the longitudinal resistivity ρ_zz observed in the quasi-two-dimensional organic compound β''-(BEDT-TTF)_2SF_5CH_2CF_2SO_3. We point out that the self-consistent equations of the theory yielding the longitudinal resistivity and the magnetic field dependence of the chemical potential have been incorrectly solved. We show that the consideration of the self-consistent Born approximation (which determines the relaxation rate in Gvozdikov's paper) leads in fact to the complete absence of the longitudinal conductivity σ_{zz} at leading order in high magnetic fields.
4 pages, no figure
References in corpus (5)
- Theory of the Shubnikov-de Haas effect in quasi-two-dimensional metals
- The influence of the oscillations of the chemical potential on the de Haas - van Alphen effect in quasi-two-dimensional compounds
- Magnetic Quantum Oscillations of the Longitudinal Conductivity in Quasi two-dimensional Metals
- Thermal activation between Landau levels in the organic superconductor -(BEDT-TTF)SFCHCFSO
- Giant Quantum Oscillations of the Longitudinal Magnetoresistance in Quasi two-dimensional Metals