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dc.contributor.authorGhosh, Sumit
dc.contributor.authorSaha, Arijit
dc.date.accessioned2016-01-19T14:45:32Z
dc.date.available2016-01-19T14:45:32Z
dc.date.issued2014-08-01
dc.identifier.citationGhosh S, Saha A (2014) Persistent current of relativistic electrons on a Dirac ring in presence of impurities. Eur Phys J B 87. Available: http://dx.doi.org/10.1140/epjb/e2014-50223-1.
dc.identifier.issn1434-6028
dc.identifier.issn1434-6036
dc.identifier.doi10.1140/epjb/e2014-50223-1
dc.identifier.urihttp://hdl.handle.net/10754/594300
dc.description.abstractWe study the behaviour of persistent current of relativistic electrons on a one dimensional ring in presence of attractive/repulsive scattering potentials. In particular, we investigate the persistent current in accordance with the strength as well as the number of the scattering potential. We find that in presence of single scatterer the persistent current becomes smaller in magnitude than the scattering free scenario. This behaviour is similar to the non-relativistic case. Even for a very strong scattering potential, finite amount of persistent current remains for a relativistic ring. In presence of multiple scatterer we observe that the persistent current is maximum when the scatterers are placed uniformly compared to the current averaged over random configurations. However if we increase the number of scatterers, we find that the random averaged current increases with the number of scatterers. The latter behaviour is in contrast to the non-relativistic case. © 2014 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
dc.description.sponsorshipS.G. likes to acknowledge the financial support by the CSIR, India. The work of A.S. has been supported by the Swiss NSF, NCCR Nanoscience, and NCCR QSIT.
dc.publisherSpringer Nature
dc.subjectMesoscopic and Nanoscale Systems
dc.titlePersistent current of relativistic electrons on a Dirac ring in presence of impurities
dc.typeArticle
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalThe European Physical Journal B
dc.contributor.institutionS.N. Bose National Centre for Basic Sciences, Salt-Lake 700098, Kolkata, India
dc.contributor.institutionDepartment of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
dc.identifier.arxivid1308.4071
kaust.personGhosh, Sumit
dc.date.published-online2014-08-01
dc.date.published-print2014-08


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