TRANSPORT SPECTROSCOPY OF A CONFINED ELECTRON-SYSTEM UNDER A GATE TIP

被引：89

作者：

WEIS, J

HAUG, RJ

VONKLITZING, K

PLOOG, K

机构：

[1] Max-Planck-Institut fur Festkorperforschung, D-7000 Stuttgart 80

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.46.12837

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conductance resonances measured for split-gate structures around threshold are interpreted in terms of single-electron tunneling through a quantum dot beneath the tip of the gate finger. Measurements at different values of source-drain voltage allow the spectroscopy of excited states for a fixed number of electrons in the quantum dot. The measured magnetic-field dependence of the conductance resonances is consistent with a minimal number of seven electrons in the quantum dot.

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页码：12837 / 12840

页数：4

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