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Phases of the excitonic condensate in two-layer graphene

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arxiv 1206.5646 v2 pith:DMF5KFYH submitted 2012-06-25 cond-mat.mes-hall

Phases of the excitonic condensate in two-layer graphene

Yevhen F. Suprunenko , Vadim Cheianov , Vladimir I. Fal'ko This is my paper
classification cond-mat.mes-hall
keywords accountexcitonicgraphenesymmetryanalyzebreakingbuildcarrier
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Two graphene monolayers that are oppositely charged and placed close to each other are considered. Taking into account valley and spin degeneracy of electrons we analyze the symmetry of the excitonic insulator states in such a system and build a phase diagram that takes into account the effect of the symmetry breaking due to the external in-plane magnetic field and the carrier density imbalance between the layers.

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