Persistent current of relativistic electrons on a Dirac ring in presence of impurities

  title={Persistent current of relativistic electrons on a Dirac ring in presence of impurities},
  author={Sumit Ghosh and Arijit Saha},
  journal={The European Physical Journal B},
We 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… Expand
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Signatures of the Dirac electron in the flux dependence of total persistent currents in isolated Aharonov-Bohm rings.
  • I. Cotăescu, E. Papp
  • Physics, Medicine
  • Journal of physics. Condensed matter : an Institute of Physics journal
  • 2007
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