Rodrigues Lavor, I., Rabelo da Costa, D., Chaves, A., Farias, G. d. A., Macêdo, R. and Peeters, F. M. (2020) Magnetic field induced vortices in graphene quantum dots. Journal of Physics: Condensed Matter, 32(15), 155501. (doi: 10.1088/1361-648X/ab6463)
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207156.pdf - Accepted Version 17MB |
Abstract
The energy spectrum and local current patterns in graphene quantum dots are investigated for different geometries in the presence of an external perpendicular magnetic field. Our results demonstrate that, for specific geometries and edge configurations, the quantum dot exhibits vortex and anti-vortex patterns in the local current density, in close analogy to the vortex patterns observed in the probability density current of semiconductor quantum dots, as well as in the order parameter of mesoscopic superconductors.
| Item Type: | Articles |
|---|---|
| Additional Information: | This work was financially supported by the CAPES foundation and CNPq (Science Without Borders, PQ and FUNCAP/ PRONEX programs). |
| Keywords: | Graphene quantum dots, probability density current, vortex patterns. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Macedo, Dr Rair |
| Authors: | Rodrigues Lavor, I., Rabelo da Costa, D., Chaves, A., Farias, G. d. A., Macêdo, R., and Peeters, F. M. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Journal of Physics: Condensed Matter |
| Publisher: | IOP Publishing |
| ISSN: | 0953-8984 |
| ISSN (Online): | 1361-648X |
| Published Online: | 20 December 2019 |
| Copyright Holders: | Copyright © 2020 IOP Publishing Ltd |
| First Published: | First published in Journal of Physics: Condensed Matter 32(15): 155501 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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