Transport through an isolated artificial molecule formed from stacked self-assembled quantum dots

被引：23

作者：

Bryllert, T ^{[1
]}

Borgstrom, M ^{[1
]}

Wernersson, LE ^{[1
]}

Seifert, W ^{[1
]}

Samuelson, L ^{[1
]}

机构：

[1] Lund Univ, S-22100 Lund, Sweden

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 16期

关键词：

D O I：

10.1063/1.1569423

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate resonant tunneling through two coupled self-assembled quantum dots. The strong confinement and the high crystalline quality provided by the self-assembled dots, in combination with the tunneling coupling between the dots, create a system that may be thought of as an artificial molecule. We are able to isolate one single artificial molecule and detailed investigations of the electrical properties are performed. Peak-to-valley ratios above 1000 and full width half maximum of a few millivolts are measured at 4 K. By changing the temperature we also observe Coulomb blockade effects in a different way. (C) 2003 American Institute of Physics.

引用

页码：2655 / 2657

页数：3

共 8 条

[1] The history and future of semiconductor heterostructures [J].