Honeycomb and other anomalous surface pictures of graphite

作者: P.J Ouseph , Thomas Poothackanal , George Mathew

DOI: 10.1016/0375-9601(95)00445-9

关键词: Atomic physicsHoneycomb (geometry)Condensed matter physicsHoneycomb structureGraphiteScanning tunneling microscopeHexagonal symmetryTungstenPhysicsSurface (mathematics)

摘要: Abstract Scanning tunneling microscope pictures of graphite ordinarily show only half the atoms, B-site in closepacked hexagonal symmetry. The do not expected honeycomb structure with A- and atoms. We have obtained STM showing along well resolved atoms electronic bridge using tungsten graphite-coated probes. Repeated scanning, however, changed geometry pictures, eventually giving

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