Screening and gap generation in bilayer graphene

T. Stroucken; Johanna Grönqvist; S.W. Koch

doi:10.1103/physrevb.87.245428

Screening and gap generation in bilayer graphene

T. Stroucken
, Johanna Grönqvist
, S.W. Koch

Fysik

Forskningsoutput: Tidskriftsbidrag › Artikel › Vetenskaplig › Peer review

13 Citeringar (Scopus)

Sammanfattning

A fully self-consistent treatment for gap generation and Coulomb screening in excitonic insulators is presented. The method is based on the equations of motion for the relevant dynamical variables combined with a variational approach. Applying the theory for a model system of bilayer graphene, an excitonic ground state with a gap exceeding 10 meV is predicted.

Originalspråk	Engelska
Tidskrift	Physical review B: Condensed matter and materials physics
Volym	87
Nummer	24
DOI	https://doi.org/10.1103/physrevb.87.245428
Status	Publicerad - 2013
MoE-publikationstyp	A1 Tidskriftsartikel-refererad

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10.1103/physrevb.87.245428

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https://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.245428

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title = "Screening and gap generation in bilayer graphene",

abstract = "A fully self-consistent treatment for gap generation and Coulomb screening in excitonic insulators is presented. The method is based on the equations of motion for the relevant dynamical variables combined with a variational approach. Applying the theory for a model system of bilayer graphene, an excitonic ground state with a gap exceeding 10 meV is predicted.",

keywords = "graphene, 2D materials, many-body theory",

author = "T. Stroucken and Johanna Gr{\"o}nqvist and S.W. Koch",

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doi = "10.1103/physrevb.87.245428",

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T1 - Screening and gap generation in bilayer graphene

AU - Stroucken, T.

AU - Grönqvist, Johanna

AU - Koch, S.W.

PY - 2013

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AB - A fully self-consistent treatment for gap generation and Coulomb screening in excitonic insulators is presented. The method is based on the equations of motion for the relevant dynamical variables combined with a variational approach. Applying the theory for a model system of bilayer graphene, an excitonic ground state with a gap exceeding 10 meV is predicted.

KW - graphene

KW - 2D materials

KW - many-body theory

UR - https://journals.aps.org/prb/abstract/10.1103/PhysRevB.87.245428

U2 - 10.1103/physrevb.87.245428

DO - 10.1103/physrevb.87.245428

M3 - Article

SN - 1098-0121

VL - 87

JO - Physical review B: Condensed matter and materials physics

JF - Physical review B: Condensed matter and materials physics

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Screening and gap generation in bilayer graphene

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