EXCHANGE INTERACTION IN A QUANTUM WIRE IN A STRONG MAGNETIC-FIELD

被引：36
|
作者：
KINARET, JM
LEE, PA
机构：
[1] Department of Physics, Massachusetts Institute of Technology, Cambridge
来源：
PHYSICAL REVIEW B | 1990年 / 42卷 / 18期
关键词：
D O I：
10.1103/PhysRevB.42.11768
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We show that, for a sufficiently high number of electrons per unit length, the lateral confinement in narrow wires restores degeneracies that are lifted by exchange effects in two-dimensional systems in a magnetic field. The results are used to explain some experimental observations where the two-probe conductance of a quantum wire was found to be quantized with step size 2e2/h.
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页码：11768 / 11773
页数：6
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