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Electron-induced rippling in graphene

AuthorsSan-José, Pablo ; González, José; Guinea, F.
Issue Date2011
PublisherAmerican Physical Society
CitationPhysical Review Letters 106: 045502 (2011)
AbstractWe show that the interaction between flexural phonons, when corrected by the exchange of electron-hole excitations, may drive the graphene sheet into a quantum critical point characterized by the vanishing of the bending rigidity of the membrane. Ripples arise then due to spontaneous symmetry breaking, following a mechanism similar to that responsible for the condensation of the Higgs field in relativistic field theories, and leading to a zero-temperature buckling transition in which the order parameter is given by the square of the gradient of the flexural phonon field. © 2011 American Physical Society.
Identifiersdoi: 10.1103/PhysRevLett.106.045502
issn: 0031-9007
Appears in Collections:(CFMAC-IEM) Artículos
(ICMM) Artículos
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