Magnetic field induced vortices in graphene quantum dots

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)

[img] Text
207156.pdf - Accepted Version
Restricted to Repository staff only until 20 December 2020.

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

University Staff: Request a correction | Enlighten Editors: Update this record