Photoassisted dynamical transport in multiple quantum wells

Details Photoassisted dynamical transport in multiple quantum wells Photoassisted dynamical transport in multiple quantum wells

2001-06-05

arxiv.org/abs/cond-mat/0106088v1

Physica E 12, 319 (2002)

Physics

Condensed Matter

4 pages, 2 figures

Scientific paper

10.1016/S1386-9477(01)00355-1

We study the dynamical transport in weakly coupled superlattices in the presence of intense radiation in the THz regime. We derive a general model for the time dependent tunneling current within the Keldysh nonequilibrium-Green-function formalism. For the particular situation in which fast scattering procceses drive the system to local equilibrium in the wells drastic changes are found in the current vs. voltage curves.

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