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-Feb-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
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