Field-Induced kosterlitz-Thouless transition in the N=0 landau level of graphene

Kentaro Nomura, Shinsei Ryu, Dung Hai Lee

Research output: Contribution to journalArticle

64 Citations (Scopus)

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 languageEnglish
Article number216801
JournalPhysical Review Letters
Volume103
Issue number21
DOIs
Publication statusPublished - 2009 Nov 20

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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