Abstract

Small-signal ac transport of degenerate two-dimensional hot electrons in PbTe quantum wells is studied here incorporating deformation potential acoustic, polar optic and ionized background and remote impurity scatterings in the framework of heated drifted Fermi-Dirac distribution. The effects of double delta doping on millimeter and sub-millimeter wave response of two-dimensional hot electrons in PbTe quantum well is investigated. The inclusion of delta doping is found to enhance the two-dimensional electron density which in turn improves the ac mobility in the PbTe quantum wells thereby providing scope of getting higher speed devices in future.

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