Quasi-stationary states of electrons and holes in an open composite cylindrical quantum wire

被引：0
|
作者：
N. V. Tkach
V. A. Golovatskii
机构：
[1] Chernovtsy State University,
来源：
Physics of the Solid State | 2001年 / 43卷
关键词：
Spectroscopy; State Physics; Geometric Parameter; Resonance State; Quantum Wire;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The energies of the quasi-stationary states of electrons and holes in an open composite cylindrical quantum wire are calculated within the effective-mass approximation by means of the S-matrix theory. Specific calculation is carried out for the HgS/CdS/HgS system. The poles of the S matrix in the complex energy plane are studied. The dependences of the lifetimes of quasiparticles in quasi-stationary resonance states on the longitudinal quasi-momentum and geometric parameters of the nanosystem are obtained. It is shown that the quasiparticle lifetimes in the resonance states exponentially diminish as the longitudinal quasi-momentum increases.
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页码：365 / 372
页数：7
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