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A numerical study of various asymmetric quantum well structures

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3 Author(s)
Recine, G. ; Appl. Electron. Lab., Stevens Inst. of Technol., Hoboken, NJ, USA ; Rosen, B. ; Cui, H.L.

Numerical studies of transient and steady state one-dimensional transport through resonant tunneling structures (RTSs) have been widely reported. For the most part, the structures studied have been symmetric and single welled. Following the method of Buot-Jensen, we apply a lattice Weyl-Wigner 1D single band transport code to both double barrier (DBRTS) and triple barrier (TBRTS) GaAs/AlGaAS structures which are spatial asymmetric (barrier/well thicknesses). Both the transient and steady state behaviors are studied. Preliminary results show that the current-voltage characteristics (a) vary drastically from those obtained from the associated symmetric structure.

Published in:

Nanotechnology, 2003. IEEE-NANO 2003. 2003 Third IEEE Conference on  (Volume:2 )

Date of Conference:

12-14 Aug. 2003