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arXiv · 0812.3798

Vortex Core States in Superconducting Graphene

I. M. Khaymovich·N. B. Kopnin·A. S. Mel'nikov·I. A. Shereshevskii
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Abstract

The distinctive features of the electronic structure of vortex states in superconducting graphene are studied within the Bogolubov-de Gennes theory applied to excitations near the Dirac point. We suggest a scenario describing the subgap spectrum transformation which occurs with a change in the doping level. For an arbitrary vorticity and doping level we investigate the problem of existence of zero energy modes. The crossover to a Caroli - de Gennes - Matricon type of spectrum is studied.

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I. M. Khaymovich, N. B. Kopnin, A. S. Mel'nikov, I. A. Shereshevskii. 2009-01-22. Vortex Core States in Superconducting Graphene. https://doi.org/10.1103/physrevb.79.224506

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