del Valle, Miriam and Marganska, Magdalena and Grifoni, Milena (2011) Signatures of spin-orbit interaction in transport properties of finite carbon nanotubes in a parallel magnetic field. PHYSICAL REVIEW B, 84 (16): 165427. ISSN 1098-0121,
Full text not available from this repository.Abstract
The transport properties of finite nanotubes placed in a magnetic field parallel to their axes are investigated. Upon including spin-orbit coupling and curvature effects, two main phenomena are analyzed that crucially depend on the tube's chirality: (i) Finite carbon nanotubes in a parallel magnetic field may present a suppression of current due to the localization at the edges of otherwise conducting states. This phenomenon occurs due to the magnetic-field-dependent open boundary conditions obeyed by the carbon nanotube's wave functions. The transport is fully suppressed above threshold values of the magnetic field, which depend on the nanotube chirality, length, and on the spin-orbit coupling. (ii) Reversible spin-polarized currents can be obtained upon tuning the magnetic field, exploiting the curvature-induced spin-orbit splitting.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM INTERFERENCE; ELECTRONICS; GRAPHITE; RIBBONS; STATES; EDGE; DOTS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 02 Jun 2020 05:48 |
| Last Modified: | 02 Jun 2020 05:48 |
| URI: | https://pred.uni-regensburg.de/id/eprint/19970 |
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