Quantized conductance through a potential barrier

Qin Li; D. K. Ferry

doi:10.1016/0749-6036(92)90262-4

Quantized conductance through a potential barrier

Qin Li, D. K. Ferry

Research output: Contribution to journal › Article › peer-review

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Abstract

The conductance through a smooth potential barrier in a narrow quantum wire is shown to be quantized. The study of this simple model demonstrates that there are two essential elements for such conductance quantizations in the ballistic regime: a quantized energy spectrum and a nearly-classical transmission or reflection through the potential barrier. In some sense the quantized conductance steps can be viewed as a spetrometer of the quantum wire.

Original language	English (US)
Pages (from-to)	245-247
Number of pages	3
Journal	Superlattices and Microstructures
Volume	11
Issue number	2
DOIs	https://doi.org/10.1016/0749-6036(92)90262-4
State	Published - 1992

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/0749-6036(92)90262-4

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title = "Quantized conductance through a potential barrier",

abstract = "The conductance through a smooth potential barrier in a narrow quantum wire is shown to be quantized. The study of this simple model demonstrates that there are two essential elements for such conductance quantizations in the ballistic regime: a quantized energy spectrum and a nearly-classical transmission or reflection through the potential barrier. In some sense the quantized conductance steps can be viewed as a spetrometer of the quantum wire.",

author = "Qin Li and Ferry, {D. K.}",

note = "Funding Information: Acknowledgement-The authors wish to thank Y. Takagaki for helpful discussions. This work is supported by the U. S. Army Research Office.",

year = "1992",

doi = "10.1016/0749-6036(92)90262-4",

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AU - Li, Qin

AU - Ferry, D. K.

N1 - Funding Information: Acknowledgement-The authors wish to thank Y. Takagaki for helpful discussions. This work is supported by the U. S. Army Research Office.

PY - 1992

Y1 - 1992

N2 - The conductance through a smooth potential barrier in a narrow quantum wire is shown to be quantized. The study of this simple model demonstrates that there are two essential elements for such conductance quantizations in the ballistic regime: a quantized energy spectrum and a nearly-classical transmission or reflection through the potential barrier. In some sense the quantized conductance steps can be viewed as a spetrometer of the quantum wire.

AB - The conductance through a smooth potential barrier in a narrow quantum wire is shown to be quantized. The study of this simple model demonstrates that there are two essential elements for such conductance quantizations in the ballistic regime: a quantized energy spectrum and a nearly-classical transmission or reflection through the potential barrier. In some sense the quantized conductance steps can be viewed as a spetrometer of the quantum wire.

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Quantized conductance through a potential barrier

Abstract

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