NDLI: Resonant tunneling in double-barrier parabolic well structures

Content Provider	IEEE Xplore Digital Library
Author	Neofotistos, G. Guo, H. Diff, K. Gunton, J.D.
Copyright Year	1963
Abstract	The intrinsic time characteristics of a double-barrier parabolic well structure are studied numerically. One-dimensional structures with AlAs and AlGaAs barrier (and superlattice) material are investigated, and two models are considered: the actual microstructure (graded-superlattice) model and the parabolic-potential-well-model. Time-independent results such as quasi-energy levels and their widths are essentially the same for these two models. However, their time dependence has been found to be considerably different. Although the buildup times for these models are very close in magnitude, the onset of the exponential decay law for the resonant state in the parabolic potential well takes place in a very short time (after the electron density inside the well has reached its peak), thus allowing the time decay constant tau /sub d/ to be a good measure of the temporal decay.<>
Sponsorship	IEEE Electron Devices Society
Starting Page	745
Ending Page	749
Page Count	5
File Size	598658
File Format	PDF
ISSN	00189383
Volume Number	36
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1989-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resonant tunneling devices Superlattices Potential well Electrons Gallium arsenide Schrodinger equation Microstructure Physics Energy states Resonance
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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