| Effects of Electric Field on the Valence—Bond Property of an Electron in a Quantum—Dot Molecule |
| |
| 引用本文： | 王立民,罗莹,等.Effects of Electric Field on the Valence—Bond Property of an Electron in a Quantum—Dot Molecule[J].中国物理快报,2002,19(6):846-849. |
| |
| 作者姓名： | 王立民 罗莹 |
| |
| 作者单位： | DepartmentofPhysicsandInstituteofTheoreticalPhysics,BeijingNormalUniversity,Beijing100875 |
| |
| 摘 要： | The electronic structure of the quantum-dot molecules in an electric field is investigated by the finite element method with the effective mass approximation.The numerical calculation results show that the valence bond of the quantum-dot molecule alternates between covalent bonds and ionic bonds as the electric field increases.The valence-bond property can be reflected by the oscillator strength of the intraband transition.The bound state with the highest energy level in the quantum-dot molecule gradually changes into a quasibound state when the electric field increases.
|
| 关 键 词： | 半导体 量子斑点 电子价带性质 |
| 本文献已被 维普 等数据库收录！ |
|
