Electron-interaction effects on transport characteristics of nanotubes

A. A. Farajian; K. Esfarjani; H. Mizuseki; Y. Kawazoe

doi:10.1016/S0921-4526(02)00978-X

Electron-interaction effects on transport characteristics of nanotubes

A. A. Farajian, K. Esfarjani, H. Mizuseki, Y. Kawazoe

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

Using a tight-binding model within the mean-field approximation, the effects of different spin configurations on transport through carbon nanotubes are studied. It is observed that, in the absence of external magnetic field, the mean-field ground states of both semiconducting and metallic nanotubes are antiferromagnetic. As regards electronic/transport properties, a gap opens in the density of states of the metallic tubes for weak applied magnetic fields, and the magnetic field separates the conductance characteristics of spin-up and spin-down carriers.

Original language	English
Pages (from-to)	242-243
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	323
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4526(02)00978-X
Publication status	Published - 2002 Oct 1
Event	Proceedings of the Tsukuba Symposium on Carbon Nanotube in Com (CNT10) - Tsukuba, Japan Duration: 2001 Oct 3 → 2001 Oct 5

Keywords

Mean-field approximation
Spin transport
Stable spin configuration

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(02)00978-X

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abstract = "Using a tight-binding model within the mean-field approximation, the effects of different spin configurations on transport through carbon nanotubes are studied. It is observed that, in the absence of external magnetic field, the mean-field ground states of both semiconducting and metallic nanotubes are antiferromagnetic. As regards electronic/transport properties, a gap opens in the density of states of the metallic tubes for weak applied magnetic fields, and the magnetic field separates the conductance characteristics of spin-up and spin-down carriers.",

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T1 - Electron-interaction effects on transport characteristics of nanotubes

AU - Farajian, A. A.

AU - Esfarjani, K.

AU - Mizuseki, H.

AU - Kawazoe, Y.

PY - 2002/10/1

Y1 - 2002/10/1

N2 - Using a tight-binding model within the mean-field approximation, the effects of different spin configurations on transport through carbon nanotubes are studied. It is observed that, in the absence of external magnetic field, the mean-field ground states of both semiconducting and metallic nanotubes are antiferromagnetic. As regards electronic/transport properties, a gap opens in the density of states of the metallic tubes for weak applied magnetic fields, and the magnetic field separates the conductance characteristics of spin-up and spin-down carriers.

AB - Using a tight-binding model within the mean-field approximation, the effects of different spin configurations on transport through carbon nanotubes are studied. It is observed that, in the absence of external magnetic field, the mean-field ground states of both semiconducting and metallic nanotubes are antiferromagnetic. As regards electronic/transport properties, a gap opens in the density of states of the metallic tubes for weak applied magnetic fields, and the magnetic field separates the conductance characteristics of spin-up and spin-down carriers.

KW - Mean-field approximation

KW - Spin transport

KW - Stable spin configuration

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