Heptagraphene: Tunable Dirac Cones in a Graphitic Structure

We predict the existence and dynamical stability of heptagraphene, a new graphitic structure formed of rings of 10 carbon atoms bridged by carbene groups yielding seven-membered rings. Despite the rectangular unit cell, the band structure is topologically equivalent to that of strongly distorted gra...

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Bibliographic Details
Main Authors: Lopez-Bezanilla, Alejandro, Martin, Ivar, Littlewood, Peter B.
Format: Online
Language:English
Published: Nature Publishing Group 2016
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5020683/