Charging energy of a chaotic quantum dot

被引：35

作者：

Möller, S ^{[1
]}

Buhmann, H ^{[1
]}

Godijn, SF ^{[1
]}

Molenkamp, LW ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Phys 2, D-52056 Aachen, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.81.5197

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The scaling behavior of the charging energy of a quantum dot with asymmetrically adjusted tunnel barriers is measured through the amplitude of the Coulomb oscillations in the thermovoltage. For weak coupling between the dot and the reservoirs, we observe a linear scaling of the effective charging energy when the transmission probability of one tunnel barrier is increased. At higher transmission probabilities, we find a deviation from the linear scaling and a crossover to a constant value. This behavior is caused by the chaotic nature of the electron trajectories within the dot. [S0031-9007(98)07846-6].

引用

页码：5197 / 5200

页数：4

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