Local and quasilocal energy levels of electrons on nanotube surfaces and in rings in magnetic fields

被引：2
|
作者：
Ermolaev, A. M. [1 ]
Kofanov, S. V. [1 ]
Rashba, G. I. [1 ]
机构：
[1] Kharkov Natl Univ, UA-61077 Kharkov, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2011年 / 37卷 / 06期
关键词：
binding energy; electronic density of states; impurity states; nanotubes; perturbation theory; surface states; CYLINDRICAL TUBULES; EXCITATIONS;
D O I：
10.1063/1.3622626
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The Lifshitz local perturbation technique is used to examine impurity states of electrons on nanotube surfaces and in rings in magnetic fields. It is shown that an impurity in the form of a thin ring on a tube can form local and quasilocal electron states. The positions and widths of the impurity levels are found. These quantities on tubes and rings are calculated numerically for the parameters of semiconductor structures. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3622626]
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页码：506 / 510
页数：5
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