MODULATION OF COULOMB-BLOCKADE OSCILLATIONS BY COHERENT RESONANT-TUNNELING

被引：24

作者：

HEINZEL, T ^{[1
]}

MANUS, S ^{[1
]}

WHARAM, DA ^{[1
]}

KOTTHAUS, JP ^{[1
]}

BOHM, G ^{[1
]}

KLEIN, W ^{[1
]}

TRANKLE, G ^{[1
]}

WEIMANN, G ^{[1
]}

机构：

[1] TECH UNIV MUNICH,WALTER SCHOTTKY INST,D-85748 GARCHING,GERMANY

来源：

EUROPHYSICS LETTERS | 1994年 / 26卷 / 09期

关键词：

D O I：

10.1209/0295-5075/26/9/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Coulomb blockade oscillations of the conductance of a quantum dot defined in a two-dimensional electron gas are investigated. At low temperatures, a dramatic modulation of the peak conductances is found at zero magnetic field. This modulation is attributed to current-carrying electrons that tunnel through the dot coherently giving rise to resonances in the transmission. Temperature-dependent measurements indicate that the strength of the modulation is determined by the thermal smearing of the Fermi function.

引用

页码：689 / 694

页数：6

共 17 条

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