Electron energy spectrum and the Berry phase in graphite bilayer

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dc.creatorMikitik, G. P.
dc.creatorSharlai, Yu. V.
dc.date2007-09-12
dc.date2007-12-18
dc.date.accessioned2026-07-07T09:28:12Z
dc.date.available2026-07-07T09:28:12Z
dc.descriptionWe emphasize that there exist four Dirac-type points in the electron-energy spectrum of a graphite bilayer near the point K of its Brillouin zone. One of the Dirac points is at the point K, and three Dirac points lie nearby. Each of these three points generates the Berry phase $π$, while the Dirac point at K gives the phase $-π$. It is these four points that determine the Berry phase in the bilayer. If an electron orbit surrounds all these points, the Berry phase is equal to $2π$.
dc.description4 pages, 2 figures, submitted to Phys. Rev. B ; expanded
dc.identifierhttps://arxiv.org/abs/0709.1803
dc.identifierhttp://arxiv.org/abs/0709.1803
dc.identifierPhys. Rev. B 77, 113407 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.113407
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157369
dc.subjectMaterials Science
dc.titleElectron energy spectrum and the Berry phase in graphite bilayer
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