TUNNELING THROUGH QUANTUM-DOT SYSTEMS - A STUDY OF THE MAGNETOCONDUCTANCE FLUCTUATIONS

被引：8
|
作者：
WANG, YJ [1 ]
WANG, J [1 ]
GUO, H [1 ]
ROLAND, C [1 ]
机构：
[1] N CAROLINA STATE UNIV,DEPT PHYS,RALEIGH,NC 27695
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1994年 / 6卷 / 11期
关键词：
D O I：
10.1088/0953-8984/6/11/001
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We report on a theoretical study of ballistic transport of electrons through two-probe quantum-dot systems in the tunnelling regime. Large aperiodic conductance fluctuations are observed as a function of the external magnetic field and the electron energy. We analyse the magnetic field correlation functions of the conductance fluctuation for both a stadium-shaped dot and a rectangular dot and find that they are qualitatively different. The correlation function of the stadium-shaped dot agrees well with the semi-classical chaotic-scattering theory, while that of the rectangular dot does not.
引用
收藏
页码：L143 / L148
页数：6
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