Abstract
At the charge neutral point, graphene exhibits a very unusual high-resistance metallic state and a transition to a complete insulating phase in a strong magnetic field. We propose that the current carriers in this state are the charged vortices of the XY valley-pseudospin order parameter, a situation which is dual to a conventional thin superconducting film. We study energetics and the stability of this phase in the presence of disorder.
Original language | English |
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Article number | 216801 |
Journal | Physical Review Letters |
Volume | 103 |
Issue number | 21 |
DOIs | |
Publication status | Published - 2009 Nov 20 |
ASJC Scopus subject areas
- Physics and Astronomy(all)