The Shubnikov-de Haas effect in multiband quasi-two dimensional metals

Thomas, I. O.; Kabanov, V. V.; Alexandrov, A. S.

The Shubnikov-de Haas effect in multiband quasi-two dimensional metals

Authors

Thomas, I. O.

Kabanov, V. V.

Alexandrov, A. S.

Description

We analyze the behavior of the longitudinal conductivity $σ_{zz}$ in a field perpendicular to the highly conducting plane of a quasi-2D {\em multiband} metal in the case of closed system and open systems where $τ$ is fixed, $τ$ oscillates due to intra-band scattering and $τ$ oscillates due to inter-band scattering. In all but one case, we find that there are also mixing frequencies present -- however they exhibit different qualitative behaviors, as befits their different origins, and in the case of inter-band scattering in an opensystem, may in fact be absent in the dHvA oscillations of that system.
22 pages, 7 figures; paper reorganised and extended, with two additional results now included (the abstract has been updated to reflect this)