Effects of trigonal warping on perfect channel in metallic carbon nanotubes

被引：19

作者：

Akimoto, K ^{[1
]}

Ando, T ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2004年 / 73卷 / 08期

关键词：

graphite; carbon nanotube; impurity; effective-mass theory; localization; time reversal;

D O I：

10.1143/JPSJ.73.2194

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Numerical calculations of the conductance are performed to study effects of trigonal warping of bands on a perfectly conducting channel in metallic carbon nanotubes existing unless the potential range of scatterers is smaller than the lattice constant. The perfect channel can easily be destroyed in the presence of small amount of trigonal warping when there are several bands at the energy, while it is much more robust in the energy range of metallic linear bands.

引用

页码：2194 / 2200

页数：7

共 32 条

[1] ELECTRONIC STATES OF CARBON NANOTUBES [J].

AJIKI, H ;

ANDO, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1993, 62 (04) :1255-1266

[2] Energy bands of carbon nanotubes in magnetic fields [J].

Ajiki, H ;

Ando, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (02) :505-514

[3] NEW METHOD FOR A SCALING THEORY OF LOCALIZATION [J].

ANDERSON, PW ;

THOULESS, DJ ;

ABRAHAMS, E ;

FISHER, DS .

PHYSICAL REVIEW B, 1980, 22 (08) :3519-3526

[4] NEW METHOD FOR SCALING THEORY OF LOCALIZATION .2. MULTICHANNEL THEORY OF A WIRE AND POSSIBLE EXTENSION TO HIGHER DIMENSIONALITY [J].

ANDERSON, PW .

PHYSICAL REVIEW B, 1981, 23 (10) :4828-4836

[5] CONDUCTANCE FLUCTUATIONS IN QUANTUM WIRES WITH SPIN-ORBIT AND BOUNDARY-ROUGHNESS SCATTERING [J].

ANDO, T ;

TAMURA, H .

PHYSICAL REVIEW B, 1992, 46 (04) :2332-2338

[6] Spin-orbit interaction in carbon nanotubes [J].

Ando, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2000, 69 (06) :1757-1763

[7] Effects of magnetic field and flux on perfect channel in metallic carbon nanotubes [J].

Ando, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2004, 73 (05) :1273-1280

[8] Effects of short-range scatterers on perfect channel in metallic carbon nanotubes [J].

Ando, T ;

Akimoto, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2004, 73 (07) :1895-1901

[9] Presence of perfectly conducting channel in metallic carbon nanotubes [J].

Ando, T ;

Suzuura, H .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2002, 71 (11) :2753-2760

[10] Quantum transport in a carbon nanotube in magnetic fields [J].

Ando, T ;

Seri, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1997, 66 (11) :3558-3565

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