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Interacting Electrons in Graphene: Fermi Velocity Renormalization and Optical Response

Stauber, T., Parida, P. , Trushin, M., Ulybyshev, M. V. , Boyda, D. L. and Schliemann, J. (2017) Interacting Electrons in Graphene: Fermi Velocity Renormalization and Optical Response. Physical Review Letters 118 (26).

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Other URL: http://doi.org/10.1103/PhysRevLett.118.266801


Abstract

We have developed a Hartree-Fock theory for electrons on a honeycomb lattice aiming to solve a longstanding problem of the Fermi velocity renormalization in graphene. Our model employs no fitting parameters (like an unknown band cutoff) but relies on a topological invariant (crystal structure function) that makes the Hartree-Fock sublattice spinor independent of the electron-electron interaction. ...

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Item type:Article
Date:2017
Institutions:Physics > Institute of Theroretical Physics
Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann
Identification Number:
ValueType
10.1103/PhysRevLett.118.266801DOI
Keywords:MINIMAL CONDUCTIVITY;
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:38872
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