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 |
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Pages (from-to) | 242-243 |
Number of pages | 2 |
Journal | Physica B: Condensed Matter |
Volume | 323 |
Issue number | 1-4 |
DOIs | |
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