Phys. Rev. Lett. 102, 087402 (2009) [4 pages]Formation of sp3-Bonded Carbon Nanostructures by Femtosecond Laser Excitation of GraphiteReceived 16 September 2008; published 23 February 2009 A scanning tunneling microscopy study and ab initio total energy calculations have identified the atomic-level structure of novel sp3-bonded carbon nanoscale domains formed dynamically from graphite by femtosecond-laser excitation. The structure is characterized by a pseudo sp3-bonding configuration that results in inward displacement of surface carbon atoms by 0.5 Å in every third row along the [11̅ 00] orientation. This structural periodicity is unique and differs from conventional phases of diamond. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.102.087402
DOI:
10.1103/PhysRevLett.102.087402
PACS:
78.66.Tr, 61.80.Ba, 68.37.Ef, 73.20.At
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