Zone-selective photoelectronic measurements of the local bonding and electronic dynamics associated with the monolayer skin and point defects of graphite
RSC Adv DOI: 10.1039/c2ra00512c
STM/S Profiles of point defects at graphite surface[PRL 104, 096804, 2010] evidenced the BOLS expected high protrusion and the Ef resonant peaks as arising from th epolarization of the dangling bond electrons by the localy and densely entrapped core electrons of he lesscoordinated edge carbon atoms.
Findings:
1) surface bonds are shorter and stronger (Ts) than those in the bulk (B);
2) defect bonds are even shorter and stronger (TD);
3) defect dangling bond electrons are polarized (P).