Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/27423

TitleBand nesting and the optical response of two-dimensional semiconducting transition metal dichalcogenides
Author(s)Carvalho, A.
Ribeiro, R. M.
Castro Neto, A. H.
KeywordsDichalcogenides
Band nesting
Issue date2013
PublisherAmerican Physical Society
JournalPhysical Review B: Condensed Matter and Materials Physics
Abstract(s)We have studied the optical conductivity of two-dimensional (2D) semiconducting transition metal dichalcogenides using ab initio density functional theory. We find that this class of materials presents large optical response due to the phenomenon of band nesting. The tendency towards band nesting is enhanced by the presence of van Hove singularities in the band structure of these materials. Given that 2D crystals are atomically thin and naturally transparent, our results show that it is possible to have strong photon-electron interactions even in 2D.
TypeArticle
URIhttps://hdl.handle.net/1822/27423
DOI10.1103/PhysRevB.88.115205
ISSN1098-0121
e-ISSN1550-235X
Publisher versionhttp://prb.aps.org/abstract/PRB/v88/i11/e115205
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - CEP - Artigos/Papers (with refereeing)

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