Publication: Effective nonlinear model of resonant tunneling nanostructures
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1996-05-27
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Elsevier
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Abstract
We introduce a model of a nonlinear double-barrier structure to describe in a simple way the effects of electron-electron
scattering while remaining analytically tractable. The model is based on a generalized effective-mass equation where a
non linear local field interaction is introduced to account for those inelastic scattering phenomena. Resonance peaks seen
in the transmission coefficient spectra for the linear case appear shifted to higher energies depending on the magnitude of
the non linear coupling. Our results are in good agreement with self-consistent solutions of the Schrodinger and Poisson
equations. The calculation procedure is seen to be very fast, which makes our technique a good candidate for a rapid
approximate analysis of these structures.
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Physics Letters A, vol. 215, n. 1-2, 27 may. 1996. Pp. 103-107