Phases of the excitonic condensate in two-layer graphene

Yevhen F. Suprunenko; Vadim Cheianov; Vladimir I. Fal'Ko

doi:10.1103/PhysRevB.86.155405

Phases of the excitonic condensate in two-layer graphene

Yevhen F. Suprunenko^*
, Vadim Cheianov
, Vladimir I. Fal'Ko

^*Corresponding author for this work

Lancaster University

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

Abstract

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.

Original language	English
Article number	155405
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	86
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.86.155405
Publication status	Published - 4 Oct 2012

Research Highlights, Institutes and Platforms

National Graphene Institute

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10.1103/PhysRevB.86.155405

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title = "Phases of the excitonic condensate in two-layer graphene",

abstract = "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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AU - Fal'Ko, Vladimir I.

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AB - 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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DO - 10.1103/PhysRevB.86.155405

M3 - Article

AN - SCOPUS:84867063295

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

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Phases of the excitonic condensate in two-layer graphene

Abstract

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