Phases of the excitonic condensate in two-layer graphene

Suprunenko, Yevhen F. and Cheianov, Vadim and Falko, Vladimir (2012) Phases of the excitonic condensate in two-layer graphene. Physical review B, 86 (15). ISSN 1098-0121

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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.

Item Type:
Journal Article
Journal or Publication Title:
Physical review B
Additional Information:
©2012 American Physical Society
Subjects:
ID Code:
63606
Deposited By:
Deposited On:
22 Apr 2013 10:00
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Oct 2020 02:05