BALLISTIC ELECTRONIC CONDUCTANCE OF A WIDE ORIFICE

被引：32

作者：

AVISHAI, Y

BAND, YB

机构：

[1] ALLIED SIGNAL INC,CTR CORP TECHNOL,MORRISTOWN,NJ 07960

[2] BEN GURION UNIV NEGEV,DEPT CHEM,BEER SHEVA,ISRAEL

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.41.3253

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For the ballistic motion of a two-dimensional noninteracting electron gas we compute the quantum-mechanical conductance of a rectangle of length L whose lateral dimension a is greater than that of the incoming and outgoing wires, b. The global structure of the conductance when the lateral dimension increases reveals slow decay, contrary to what one expects from the simple law of addition of resistances in parallel. Closer inspection shows an oscillatory behavior with well-defined peaks at kFa/n. No quantized plateaus (which occur for a<b) exist. A simple interpretation is given in terms of localization and resonance tunneling. © 1990 The American Physical Society.

引用

页码：3253 / 3255

页数：3

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