https://doi.org/10.1140/epjb/e2011-20050-1
Conductivity of 2D multi-component electron gas partially-quantized by magnetic field
1
Institute of Semiconductor Physics, Siberian Branch,
Russian Academy of Sciences, Novosibirsk, 630090, Russia
2
Novosibirsk State University, Novosibirsk, 630090, Russia
Corresponding author: a entin@isp.nsc.ru
Received:
18
January
2011
Revised:
11
April
2011
Published online:
4
May
2011
The 2D semimetal consisting of heavy holes and light
electrons is studied. The consideration is based on the assumption
that electrons are quantized by magnetic field while holes remain
classical. We assume also that the interaction between components
is weak and the conversion between components is absent. The
kinetic equation for holes colliding with quantized electrons is
utilized. It has been stated that the inter-component friction and
corresponding correction to the dissipative conductivity 
do not vanish at zero temperature due to
degeneracy of the Landau levels. This correction arises when the
Fermi level crosses the Landau level. The statement will keep in
force until the degeneracy remains.
The limits of
kinetic equation applicability were found. We also study the
situation of kinetic memory when particles repeatedly return to
their meeting points.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2011
