Spectroscopy of the single-particle states of a quantum-dot molecule

被引：77

作者：

Schmidt, T

Haug, RJ

vonKlitzing, K

Forster, A

Luth, H

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST SCHICHT & IONENTECH, D-52428 JULICH, GERMANY

[2] UNIV HANNOVER, INST FESTKORPERPHYS, D-30167 HANNOVER, GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.78.1544

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate low-temperature transport through two identical vertically coupled quantum dots in a triple-barrier heterostructure. The current-voltage curve exhibits two series of current steps of different magnitude. On the basis of magnetotunneling measurements, we relate the current steps to the single-particle levels of a quantum-dot molecule. From the absence of many-particle phenomena, an upper limit of 1 ns is determined for the energy-relaxation time in the double-dot system.

引用

页码：1544 / 1547

页数：4

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