QUANTIZED TRANSMISSION OF A SADDLE-POINT CONSTRICTION

被引：513

作者：

BUTTIKER, M

机构：

[1] IBM Thomas J. Watson Research Center, Yorktown Heights

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.41.7906

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conductance quantization in the absence and in the presence of a magnetic field is discussed for a split-gate constriction with a local potential at the bottleneck forming a saddle. Simple criteria for the occurrence of conductance steps and the accuracy of quantization are given in terms of the curvatures of the saddle. © 1990 The American Physical Society.

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页码：7906 / 7909

页数：4

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