Gunlyke, D. and Jefferson, J. H. and Bailey, S. W. D. and Lambert, C. J. and Pettifor, G. and Briggs, G. A. D. (2006) Zener quantum dot spin filter in a carbon nanotube. Journal of Physics: Condensed Matter, 18 (21). S843-S849. ISSN 1361-648X
Full text not available from this repository.Abstract
We predict and analyse a novel spin filter in semiconducting carbon nanotubes. By using local electrostatic gates, the conduction and valence bands can be modulated to form a double-barrier structure. The confined region below the valence band defines a Zener quantum dot, which exhibits resonant tunnelling. The resonances split in a magnetic field to make a bipolar spin filter for applications in spintronics and quantum information processing. We model this using envelope function theory and show that this is in excellent agreement with a corresponding tight-binding calculation.
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Journal of Physics: Condensed Matter |
| Subjects: | Q Science > QC Physics |
| Departments: | Faculty of Science and Technology > Physics |
| ID Code: | 555 |
| Deposited By: | Prof Colin J. Lambert |
| Deposited On: | 20 Jun 2007 |
| Refereed?: | Yes |
| Published?: | Published |
| Last Modified: | 09 Apr 2014 22:08 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/555 |
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