Magnetic-field-induced transformations of Wigner molecule symmetry in quantum dots

被引：28
|
作者：
Szafran, B [1 ]
Bednarek, S [1 ]
Adamowski, J [1 ]
机构：
[1] Univ Min & Met AGH, Fac Phys & Nucl Tech, Krakow, Poland
来源：
PHYSICAL REVIEW B | 2003年 / 67卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.67.045311
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A theoretical study has been performed for the ground-state spatial configuration of Wigner molecules with N = 2,...,20 electrons in quantum dots subjected to an external magnetic field. We have shown that-for Ngreater than or equal to6-the Wigner molecule formed in the magnetic field above the maximum-density-droplet instability has a different shape than in the high-field limit. We have found several magnetic-field-induced transitions between molecular phases with different spatial symmetry.
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页数：4
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