Binding energy of excitons in a quantum ring

作者：Xie Wen Fang^*

来源：Communications in Theoretical Physics, 2008, 50(2): 529-531.

• quantum ring
• exciton

The binding energy of excitons confined to a quantum ring under the influence of perpendicular homogeneous magnetic field is calculated as a function of the ring radius. Calculations are made by using the method of exact diagonalization within the effective-mass approximation. The feature of binding energy of the ground state as a function of the ring radius for several values of the magnetic field has been revealed. The interesting feature of our study is that, in a quantum ring; the geometric structure of excitons may reveal transition.

• 出版日期2008-8-15
• 单位广州大学