2012/07/31 by Silke Hattendorf, A. Georgi, Alexander Georgi +2 · 4 citations
Chemistry · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Chemistry #Composite material #Condensed matter physics #Crystallography #Electron #Exfoliation joint #Fermi level #Graphene #Graphene research and applications #Materials science #Mica #Nanotechnology #Optoelectronics #Physics #Quantum tunnelling #Scanning electron microscope #Scanning tunneling microscope #Scanning tunneling spectroscopy #Spin polarized scanning tunneling microscopy #Surface and Thin Film Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1016/j.susc.2013.01.005
published as Surface Science, Volume 610, April 2013, Pages 53 - 58 · 9 pages, 7 figures; New version focuses on partial dislocation network
arxiv created 2012/10/30 · openalex publication_date 2013/01/21 · arxiv updated 2013/03/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Graphene flakes are prepared on freshly cleaved mica by exfoliation and studied by scanning tunneling microscopy in ultra high vacuum. On few-layer graphene, a triangular network of partial dislocations separating ABC stacked and ABA stacked graphene was found similar to the networks occasionally visible on freshly cleaved HOPG. We found differences in the electronic structure of ABC and ABA stacked areas by scanning tunneling spectroscopy, i.e., a pronounced peak at 0.25 eV above the Fermi level exclusively in the ABA areas, which is shown to be responsible for the different apparent heights observed in STM images.