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VLSI Design
Volume 15 (2002), Issue 4, Pages 695-700
http://dx.doi.org/10.1080/106551402100012309

A Comparison of Resonant Tunneling Based on Schrödinger's Equation and Quantum Hydrodynamics

1Mathématiques pour l'Industrie et la Physique,, Université P. Sabatier, Toulouse Cedex 4 31062, France
2Department of Mathematics, Arizona State University, Tempe 85287-1804, AZ, USA

Received 1 May 2001; Revised 1 April 2002

Copyright © 2002 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Smooth quantum hydrodynamic (QHD) model simulations of the current–voltage curve of a resonant tunneling diode at 300K are compared with that predicted by the mixed-state Schrödinger equation approach. Although the resonant peak for the QHD simulation occurs at 0.15V instead of the Schrödinger equation value of 0.2V, there is good qualitative agreement between the current–voltage curves for the two models, including the predicted peak current values.