Conductivity of 2D multi-component electron gas partially-quantized by magnetic field |
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Authors: | M V Entin L I Magarill |
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Institution: | 1.Institute of Semiconductor Physics, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State University,Novosibirsk,Russia |
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Abstract: | 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
σ
xx
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. |
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Keywords: | |
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