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Author Crespi, V. H. ♦ Benedict, L. X. ♦ Cohen, M. L. ♦ Louie, S. G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CARBON ♦ CRYSTAL STRUCTURE ♦ ELECTRONIC STRUCTURE ♦ ENERGY-LEVEL DENSITY ♦ FERMI LEVEL ♦ METASTABLE STATES ♦ FULLERENES ♦ TUBES ♦ ALLOTROPY
Abstract Carbon is well-known as an insulator, a semimetal, a molecular solid, and a one-dimensional semiconductor or low-density-of-states metal. We propose a pure-carbon planar structure composed of pentagons and heptagons that is metallic with a density of states at the Fermi level of {approximately}0.1 state per eV per atom. This structure, planar carbon pentaheptite, is metastable with a total energy per carbon atom comparable to that of C{sub 60}. The structure can be rolled into tubes in a manner similar to graphite. Possible synthetic pathways are discussed. {copyright}{ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-05-01
Publisher Department Lawrence Berkeley National Laboratory
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 53
Issue Number 20
Organization Lawrence Berkeley National Laboratory


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