期刊
PHYSICAL REVIEW LETTERS
卷 103, 期 21, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.216801
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资金
- MEXT [20740167]
- DOE [DE-AC02-05CH11231]
- Grants-in-Aid for Scientific Research [20740167] Funding Source: KAKEN
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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