Marganska, Magdalena and Wang, Shidong and Grifoni, Milena (2009) Electronic spectra of commensurate and incommensurate DWNTs in parallel magnetic field. NEW JOURNAL OF PHYSICS, 11: 033031. ISSN 1367-2630,
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We study the electronic spectra of commensurate and incommensurate double-wall carbon nanotubes (DWNTs) of finite length. The coupling between nanotube shells is taken into account as an inter-shell electron tunneling. Selection rules for the inter-shell coupling are derived. Due to the finite size of the system, these rules do not represent exact conservation of the crystal momentum, but only an approximate one; therefore the coupling between longitudinal momentum states in incommensurate DWNTs becomes possible. The use of the selection rules allows a fast and efficient calculation of the electronic spectrum. In the presence of a magnetic field parallel to the DWNT axis, we find spectrum modulations that depend on the chiralities of the shells.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MULTIWALL CARBON NANOTUBES; TRANSPORT; GRAPHITE; TUBULES; GAP; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Sep 2020 06:50 |
| Last Modified: | 21 Sep 2020 06:50 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29259 |
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