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.
| Original language | English (US) |
|---|---|
| Article number | 245428 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 87 |
| Issue number | 24 |
| DOIs | |
| State | Published - Jun 24 2013 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Screening and gap generation in bilayer graphene. / Stroucken, T.; Grönqvist, J. H.; Koch, Stephan W.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 87, No. 24, 245428, 24.06.2013.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Screening and gap generation in bilayer graphene
AU - Stroucken, T.
AU - Grönqvist, J. H.
AU - Koch, Stephan W
PY - 2013/6/24
Y1 - 2013/6/24
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=84879982589&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84879982589&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.87.245428
DO - 10.1103/PhysRevB.87.245428
M3 - Article
AN - SCOPUS:84879982589
VL - 87
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 24
M1 - 245428
ER -