ELECTRONIC STATES OF CARBON NANOTUBES

被引：602

作者：

AJIKI, H

ANDO, T

机构：

[1] Institute for Solid State Physics, University of Tokyo, Minato-ku, Tokyo 106

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1993年 / 62卷 / 04期

关键词：

GRAPHITE; CARBON NANOTUBE; FULLEREN TUBE; AHARONOV-BOHM EFFECT;

D O I：

10.1143/JPSJ.62.1255

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The pi-electron states of carbon nanotubes (CN's) in magnetic fields are calculated in the effective-mass theory. A sensitive change of CN from metal to semiconductor depending on its structure is well reproduced. The band gap is inversely proportional to the tube diameter and exhibits a drastic change as a function of magnetic flux passing through the cylinder with period ch/e due to the Aharonov-Bohm effect. In a magnetic field perpendicular to the tube axis, the band-gap is reduced strongly and the energy spectra approach those of a graphite sheet.

引用

页码：1255 / 1266

页数：12

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