Probing the shape of quantum dots with magnetic fields

被引：25

作者：

Drouvelis, PS

Schmelcher, P

Diakonos, FK

机构：

[1] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[2] Univ Athens, Dept Phys, GR-15771 Athens, Greece

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.69.155312

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A tool for the identification of the shape of quantum dots is developed. By preparing a two-electron quantum dot, the response of the low-lying excited states to a homogeneous magnetic field, i.e., their spin and parity oscillations, is studied for a large variety of dot shapes. For any geometric configuration of the confinement we encounter characteristic spin singlet-triplet crossovers. The magnetization is shown to be a complementary tool for probing the shape of the dot.

引用

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页码：155312 / 1

页数：5

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