Interplay between shell effects and electron correlations in quantum dots

被引：44

作者：

Harting, J ^{[1
]}

Mülken, O ^{[1
]}

Borrmann, P ^{[1
]}

机构：

[1] Carl von Ossietzky Univ, Dept Phys, D-26111 Oldenburg, Germany

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.62.10207

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use the path integral Monte Carlo method to investigate the interplay between shell effects and electron correlations in single quantum dots with up to 12 electrons. By use of an energy estimator based on the hypervirial theorem of Hirschfelder we study the energy contributions of different interaction terms in detail. We discuss under which conditions the total spin of the electrons is given by Hund's rule, and the temperature dependence of the crystallization effects.

引用

页码：10207 / 10211

页数：5

共 23 条

[21] Shell filling and spin effects in a few electron quantum dot [J].

Tarucha, S ;

Austing, DG ;

Honda, T ;

vanderHage, RJ ;

Kouwenhoven, LP .

PHYSICAL REVIEW LETTERS, 1996, 77 (17) :3613-3616

[22] Spontaneous symmetry breaking in single and molecular quantum dots [J].

Yannouleas, C ;

Landman, U .

PHYSICAL REVIEW LETTERS, 1999, 82 (26) :5325-5328

[23] Periodic and aperiodic bunching in the addition spectra of quantum dots [J].

Zhitenev, NB ;

Ashoori, RC ;

Pfeiffer, LN ;

West, KW .

PHYSICAL REVIEW LETTERS, 1997, 79 (12) :2308-2311

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