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

Kentaro Nomura; Shinsei Ryu; Dung Hai Lee

doi:10.1103/PhysRevLett.103.216801

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

Kentaro Nomura, Shinsei Ryu, Dung Hai Lee

Materials Property Division

Research output: Contribution to journal › Article › peer-review

76 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 language	English
Article number	216801
Journal	Physical Review Letters
Volume	103
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.103.216801
Publication status	Published - 2009 Nov 20

ASJC Scopus subject areas

Physics and Astronomy(all)

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

Abstract

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