Frequency dependent transport in the integer quantum Hall effect
Bäker, A. · Schweitzer, L.
Original · EN
The frequency dependent transport is investigated for a two-dimensional disordered system under QHE conditions. The real and imaginary parts of the conductivity are calculated numerically in linear response using a recursive Green function technique. The energy dependence of σxx(E,ω) is obtained within the lowest Landau band. When the width of the system exceeds the characteristic length, Lω=(ℏωρ(E))⁻¹/², the maximum of the real part of σxx(E,ω) decays with frequency almost linearly which is different from the classical Drude behaviour.
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