SELF-CONSISTENT ELECTRONIC-STRUCTURE OF A CYLINDRICAL QUANTUM WIRE

被引：22
|
作者：
PROETTO, CR
机构：
[1] Centro Atoimico Bariloche, Instituto Balseiro
来源：
PHYSICAL REVIEW B | 1992年 / 45卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.45.11911
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The self-consistent subband electronic structure, potential profile, and charge distribution of a GaAs quantum wire with cylindrical symmetry has been obtained by a numerical solution of the coupled Schrodinger and Poisson equations (within the Hartree approximation). The potential profile is exactly (nearly) parabolic when there are no (few) free carriers inside the wire, but approximates a stretched harmonic oscillator as charge accumulates in the cylindrical quantum wire. The dependence of the results on physical parameters such as the wire radius and concentration of surface states is analyzed.
引用
收藏
页码：11911 / 11917
页数：7
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