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Media type:
E-Article
Title:
Electron—electron and electron—hole pairing in graphene structures
Contributor:
Lozovik, Yu. E.;
Ogarkov, S. L.;
Sokolik, A. A.
Published:
The Royal Society, 2010
Published in:
Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 368 (2010) 1932, Seite 5417-5429
Language:
English
ISSN:
1364-503X
Origination:
Footnote:
Description:
The superconducting pairing of electrons in doped graphene owing to in-plane and out-of-plane phonons is considered. It is shown that the structure of the order parameter in the valley space substantially affects conditions of the pairing. Electron—hole pairing in a graphene bilayer in the strong coupling regime is also considered. Taking into account retardation of the screened Coulomb pairing potential shows a significant competition between the electron—hole direct attraction and their repulsion owing to virtual plasmons and single-particle excitations.