Electronic structure of ellipsoidally deformed quantum dots

被引：20
|
作者：
Lee, IH
Kim, YH
Ahn, KH
机构：
[1] Korea Inst Adv Study, Sch Phys, Dongdaemun Gu, Seoul 130012, South Korea
[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[3] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2001年 / 13卷 / 09期
关键词：
D O I：
10.1088/0953-8984/13/9/321
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Using a three-dimensional local spin-density functional method, we investigate the electronic structure of quasi two-dimensional ellipsoidal quantum dots with elliptical deformation. Changes in the electron addition energy spectra and spin polarization are investigated as a function of the number of electrons and the elliptical deformation on the lateral direction confinement potential, and compared with those of a circular dot which shows a shell structure. Especially we find that, due to the electron-electron interaction, the anisotropy of an elliptical dot is higher than that of a bare potential by similar to 1.2 for experimentally realistic potentials.
引用
收藏
页码：1987 / 1993
页数：7
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