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

TY - JOUR

T1 - Field-Induced kosterlitz-Thouless transition in the N=0 landau level of graphene

AU - Nomura, Kentaro

AU - Ryu, Shinsei

AU - Lee, Dung Hai

PY - 2009/11/20

Y1 - 2009/11/20

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevLett.103.216801

DO - 10.1103/PhysRevLett.103.216801

M3 - Article

C2 - 20366059

SN - 0031-9007

VL - 103

JO - Physical review letters

JF - Physical review letters

IS - 21

M1 - 216801

ER -