A quantum dot in the limit of strong coupling to reservoirs

被引：297

作者：

Schmid, J ^{[1
]}

Weis, J ^{[1
]}

Eberl, K ^{[1
]}

von Klitzing, K ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

PHYSICA B-CONDENSED MATTER | 1998年 / 256卷

关键词：

quantum dot; Anderson model; Kondo resonance; spin splitting;

D O I：

10.1016/S0921-4526(98)00533-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study quantum dots which are defined in a two-dimensional electron system (2DES) via split gates and concentrate on the case where the dots are strongly coupled to reservoirs. At zero drain-source voltage we find maxima in the differential conductance over one whole Coulomb-blockade regime and study the splitting of these maxima under the influence of an external magnetic field, as well as their temperature dependence. The results agree qualitatively with predictions of the Anderson model. Resonances close to - but not at - zero drain-source voltage are also observed that are still lacking a good explanation. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：182 / 185

页数：4

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