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MM: Fachverband Metall- und Materialphysik

MM 15: Poster Session

MM 15.12: Poster

Montag, 11. März 2013, 18:00–20:00, Poster E

Symmetry and electronic structure study of a predicted carbon structure — •Torsten Weißbach, Silvia Bahmann, and Jens Kortus — Institute of Theoretical Physics, TU Bergakademie Freiberg, D-09596 Freiberg

A new metastable structure for carbon, which is presented in by the authors in another contribution, was predicted theoretically. It consists of structural building blocks of diamond and graphite and exhibits tubular pores, similar to the carbon foam class of structures. Here, we investigate the symmetry of the structure and its reflection in the calculated electron and phonon band structure. Like graphite, this new carbon structure exhibits a band crossing at the Fermi level and zero band-gap. Compared to graphite, the deformation stability is enhanced by the links between the graphene planes.