Coherent and sequential photoassisted tunneling through a semiconductor double barrier structure

Details Coherent and sequential photoassisted tunneling through a semiconductor double barrier structure Coherent and sequential photoassisted tunneling through a semiconductor double barrier structure

1994-07-04

arxiv.org/abs/cond-mat/9407017v1

Physics

Condensed Matter

Revtex3.0, 8figures uuencoded compressed tar-file

Scientific paper

10.1103/PhysRevB.50.4581

We have studied the problem of coherent and sequential tunneling through a double barrier structure, assisted by light considered to be present All over the structure, i,e emitter, well and collector as in the experimental evidence. By means of a canonical transformation and in the framework of the time dependent perturbation theory, we have calculated the transmission coefficient and the electronic resonant current. Our calculations have been compared with experimental results turning out to be in good agreement. Also the effect on the coherent tunneling of a magnetic field parallel to the current in the presence of light, has been considered.

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