中国物理B ›› 2015, Vol. 24 ›› Issue (12): 127303-127303.doi: 10.1088/1674-1056/24/12/127303

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Shape effects on the ground-state energy of a three-electronquantum dot

Z. D. Vatansevera b, S. Sakiroglua, İ. Sokmena   

  1. a Department of Physics, Faculty of Science, Dokuz Eylül University, İzmir 35390, Turkey;
    b Dokuz Eylül University, Graduate School of Natural & Applied Sciences, İzmir 35390, Turkey
  • 收稿日期:2015-06-29 修回日期:2015-08-07 出版日期:2015-12-05 发布日期:2015-12-05
  • 通讯作者: Z. D. Vatansever E-mail:zeynep.demir@deu.edu.tr

Shape effects on the ground-state energy of a three-electronquantum dot

Z. D. Vatansevera b, S. Sakiroglua, ?. Sokmena   

  1. a Department of Physics, Faculty of Science, Dokuz Eylül University, ?zmir 35390, Turkey;
    b Dokuz Eylül University, Graduate School of Natural & Applied Sciences, ?zmir 35390, Turkey
  • Received:2015-06-29 Revised:2015-08-07 Online:2015-12-05 Published:2015-12-05
  • Contact: Z. D. Vatansever E-mail:zeynep.demir@deu.edu.tr

摘要:

In this work we will theoretically study the ground-state electronic structure of three-electron polygonal quantum dots by means of the configuration interaction method. Transition from a weakly correlated regime to a strongly correlated regime is investigated for quantum dots with hexagonal, square, and triangular geometries. Our numerical results reveal that the ground-state spin and the charge density distribution of the system are sensitive to the shape of the quantum dot.

关键词: quantum dot, configuration interaction method, Wigner molecule

Abstract:

In this work we will theoretically study the ground-state electronic structure of three-electron polygonal quantum dots by means of the configuration interaction method. Transition from a weakly correlated regime to a strongly correlated regime is investigated for quantum dots with hexagonal, square, and triangular geometries. Our numerical results reveal that the ground-state spin and the charge density distribution of the system are sensitive to the shape of the quantum dot.

Key words: quantum dot, configuration interaction method, Wigner molecule

中图分类号:  (Quantum dots)

  • 73.21.La
73.22.-f (Electronic structure of nanoscale materials and related systems)