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| VOLUME 82 | ISSUE 3 |
PAGE 134
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| Electronic structure of fcc carbon |
A. Tapia+, G. Canto*, G. Murrieta+, R.de Coss+
+Departamento de F\isica Aplicada, CINVESTAV-Mérida, 97310 Mérida, Yucatán, México
*Centro de Ciencias de la Materia Condensada, UNAM, A.P. 2681 Ensenada B.C., México
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PACS: 71.18.+y, 71.20.Gj, 72.15.Eb
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Abstract
We report first-principles calculations of the electronic
structure for carbon in the fcc structure with the experimentally observed
lattice parameter. The calculated orbital population shows that the chemical
bond in fcc carbon is close to the s2p2 bonding with a small s-p
hybridization. We find that, in contrast to graphite and diamond, fcc carbon
exhibits metallic behavior with an electronic density of states at the Fermi
level of 0.5 states/eV-atom.
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