Quantum dot molecules

被引：135

作者：

Austing, DG ^{[1
]}

Honda, T ^{[1
]}

Muraki, K ^{[1
]}

Tokura, Y ^{[1
]}

Tarucha, S ^{[1
]}

机构：

[1] NTT, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan

来源：

PHYSICA B-CONDENSED MATTER | 1998年 / 249卷

关键词：

triple barrier structure; coupled quantum dots; artificial molecules; Coulomb blockade;

D O I：

10.1016/S0921-4526(98)00099-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Vertically coupled dots can be employed to study the filling of electrons in quantum dot molecules. When the dots are quantum mechanically strongly coupled, the electronic states in the system are not localized, and the Coulomb diamonds and addition energy spectra of the molecule resemble those of a single artificial atom. When the dots are quantum mechanically weakly coupled, the electronic states in the system are usually localized, although the dots can be electrostatically coupled, and this leads to a pairing of conductance peaks. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：206 / 209

页数：4

共 6 条

[1] SUBMICRON VERTICAL ALGAAS/GAAS RESONANT-TUNNELING SINGLE-ELECTRON TRANSISTOR
AUSTING, DG
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[5] Shell filling and spin effects in a few electron quantum dot
Tarucha, S
Austing, DG
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[6] SINGLE-ELECTRON CHARGING IN DOUBLE AND TRIPLE QUANTUM DOTS WITH TUNABLE COUPLING
WAUGH, FR
BERRY, MJ
MAR, DJ
WESTERVELT, RM
CAMPMAN, KL
GOSSARD, AC
[J]. PHYSICAL REVIEW LETTERS, 1995, 75 (04) : 705 - 708

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