Kanasaki J, Inami E, Tanimura K, Ohnishi H, Nasu K
The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
Phys Rev Lett. 2009 Feb 27;102(8):087402. doi: 10.1103/PhysRevLett.102.087402. Epub 2009 Feb 23.
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.
一项扫描隧道显微镜研究和从头算总能量计算确定了通过飞秒激光激发由石墨动态形成的新型sp³键合碳纳米级域的原子级结构。该结构的特征是一种伪sp³键合构型，导致沿[11̅00]取向的每第三排表面碳原子向内位移0.5埃。这种结构周期性是独特的，不同于传统的金刚石相。
