Space dependent Fermi velocity in strained graphene

dc.contributor.authorDe Juan, F.en
dc.contributor.authorSturla, M.en
dc.contributor.authorVozmediano, M.A.H.en
dc.date.accessioned2014-08-01T19:12:45Zen
dc.date.available2014-08-01T19:12:45Zen
dc.date.issued2012en
dc.description.abstractWe investigate some apparent discrepancies between two different models for curved graphene: the one based on tight-binding and elasticity theory, and the covariant approach based on quantum field theory in curved space. We demonstrate that strained or corrugated samples will have a space-dependent Fermi velocity in either approach that can affect the interpretation of local probe experiments in graphene. We also generalize the tight-binding approach to general inhomogeneous strain and find a gauge field proportional to the derivative of the strain tensor that has the same form as the one obtained in the covariant approach.en
dc.identifier.citationDe Juan, F., Sturla, M., & Vozmediano, M. A. H. (2012). Space dependent fermi velocity in strained graphene. Physical Review Letters, 108(22), 227205. http://dx.doi.org/10.1103/PhysRevLett.108.227205en
dc.identifier.urihttps://hdl.handle.net/2022/18531
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.relation.isversionofhttps://doi.org/10.1103/PhysRevLett.108.227205en
dc.rights© 2012 American Physical Society.en
dc.titleSpace dependent Fermi velocity in strained grapheneen
dc.typeArticleen
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