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Comment on "Magnetic quantum oscillations of the conductivity in layered conductors"

T. Champel·V. P. Mineev
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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.

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T. Champel, V. P. Mineev. 2006-12-22. Comment on "Magnetic quantum oscillations of the conductivity in layered conductors". https://doi.org/10.1103/physrevb.74.247101

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