title: Formation of sp3-bonded carbon nanostructures by femtosecond laser excitation of graphite.
abstract: A scanning tunneling microscopy study and ab initio total energy calculations have identified the atomic-level structure of novel sp;{3}-bonded carbon nanoscale domains formed dynamically from graphite by femtosecond-laser excitation. The structure is characterized by a pseudo sp;{3}-bonding configuration that results in inward displacement of surface carbon atoms by 0.5 A in every third row along the [11[over ]00] orientation. This structural periodicity is unique and differs from conventional phases of diamond.
authors.affiliation: The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Kanasaki
authors.forename: E
authors.initials: E
authors.lastname: Inami
authors.forename: K
authors.initials: K
authors.lastname: Tanimura
authors.forename: H
authors.initials: H
authors.lastname: Ohnishi
authors.forename: K
authors.initials: K
authors.lastname: Nasu