Carbon foam: Spanning the phase space between graphite and diamond - art. no. 193409

Authors
Umemoto, K Saito, S Berber, S Tomanek, D
Citation
K. Umemoto et al., Carbon foam: Spanning the phase space between graphite and diamond - art. no. 193409, PHYS REV B, 6419(19), 2001, pp. 3409
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6419
Issue
19
Year of publication
2001
Database
ISI
SICI code
0163-1829(20011115)6419:19<3409:CFSTPS>2.0.ZU;2-#
Abstract
We study an unusual class of carbon structures, based on rigidly interconne cted segments of graphite. The resulting foamlike systems cover the structu ral phase space extending from hexagonal diamond to graphite. Related to th e most stable phases of carbon, these hybrid systems show an unusually high structural stability at low mass densities. Our density-functional calcula tions indicate that carbon foam is metallic, stable, and structurally rigid .