標題: | Hydrogenic impurity in multilayered quantum wires |
作者: | Hsieh, CY Chuu, DS 電子物理學系 Department of Electrophysics |
公開日期: | 15-二月-2001 |
摘要: | The binding energy of the ground state of a hydrogenic impurity located at the center of a multilayered quantum wire (MLQW) is studied within the framework of the effective-mass approximation. The MLQW consists of a core wire (GaAs) coated by a cylindrical shell (Ga1-xAlxAs) and then embedded in the bulk (Ga1-yAlyAs). The calculation was performed by using a trial wave function. To make a comparison, the ground and excited states (1s, 2p, and 3d states) binding energies of a hydrogenic impurity located at the center of a single-layered quantum wire (QW) are also calculated. It is found for small wire radius, the ground-state binding energy of the hydrogenic impurity located at the center of a MLQW behaves very differently from that of a single-layered QW. (C) 2001 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.1326467 http://hdl.handle.net/11536/29840 |
ISSN: | 0021-8979 |
DOI: | 10.1063/1.1326467 |
期刊: | JOURNAL OF APPLIED PHYSICS |
Volume: | 89 |
Issue: | 4 |
起始頁: | 2241 |
結束頁: | 2245 |
顯示於類別: | 期刊論文 |