Role of interference in MM-wave driven DC transport in two dimensional electron gas

Details Role of interference in MM-wave driven DC transport in two dimensional electron gas Role of interference in MM-wave driven DC transport in two dimensional electron gas

2003-05-13

arxiv.org/abs/cond-mat/0305302v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevB.69.115336

In this paper we point out that in addition to the density of states effect proposed in Ref.\cite{durst,anderson} one should consider the effect of constructive interference between the multi-MM-wave-photon processes shown in Fig.2. This process enhances the dark value of the conductivity. When the sample is very pure, i.e., when the transport life time is very long, this interference effect quickly diminishes as the MM-wave frequency deviates from the cyclotron frequency. In this paper we also present the linear response theory in the presence of strong harmonic time-dependent perturbation.

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