Aharonov-Bohm spectral features and coherence lengths in carbon nanotubes

被引：120

作者：

Roche, S ^{[1
]}

Dresselhaus, G

Dresselhaus, MS

Saito, R

机构：

[1] Univ Valladolid, Dept Fis Teor, E-47011 Valladolid, Spain

[2] CEA, DRFMC, SPSMS, F-38042 Grenoble, France

[3] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA

[4] MIT, Dept Phys, Cambridge, MA 02139 USA

[5] MIT, Dept Elect Engn & Comp Engn, Cambridge, MA 02139 USA

[6] Univ Electrocommun, Dept Elect Engn, Chofu, Tokyo 1828585, Japan

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.62.16092

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic properties of carbon nanotubes are investigated in the presence of disorder and a magnetic field parallel or perpendicular to the nanotube axis. In the parallel field geometry, the phi (0)-periodic (40 = hc/e) metal-insulator transition induced in metallic or semiconducting nanotubes is shown to be related to a chirality-dependent shifting of the energy of the van Hove singularities (VHS's). The effect of disorder on this magnetic-field-related mechanism is considered with a discussion of mean free paths, localization lengths, and magnetic dephasing rate in the context of recent experiments.

引用

页码：16092 / 16099

页数：8

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