Effects of geometry and potential profile on nonlinear transport in narrow ballistic constrictions

Content Provider	Scilit
Author	Ji, Z. -L
Copyright Year	1993
Description	Journal: Semiconductor Science and Technology The authors present quantum-mechanical model calculations of nonlinear transport in a ballistic quasi-one-dimensional (1D) channel. The effects of the geometry and potential profile on the quantum conductance for 1D ballistic transport through a constriction in a quasi-two-dimensional electron gas (2DEG) are investigated. It is found that the effects of the confining electrostatic potential in the channel on conductance are significant for large biases. To determine the nonlinear transport properties it is essential to consider how the voltage is dropped along the constriction. The appearance of new plateaux in the differential conductance of a ballistic 1D channel in the high-bias regime is possible, but depends on the form of the constriction.
Related Links	http://iopscience.iop.org/article/10.1088/0268-1242/8/8/012/pdf
Ending Page	1565
Page Count	5
Starting Page	1561
ISSN	02681242
e-ISSN	13616641
DOI	10.1088/0268-1242/8/8/012
Journal	Semiconductor Science and Technology
Issue Number	8
Volume Number	8
Language	English
Publisher	IOP Publishing
Publisher Date	1993-08-01
Access Restriction	Open
Subject Keyword	Journal: Semiconductor Science and Technology Applied Physics Condensed Matter Physics Electrostatic Potential Quantum Mechanics Ballistic Transport Two Dimensional Electron Gas
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering