244 citations · 254 across the 2 of their papers we have counts for
5 papers
Visualization of steps and surface reconstructions in Helium Ion Microscopy with atomic precision
Gregor Hlawacek, Maciej Jankowski, Herbert Wormeester +3
Helium Ion Microscopy is known for its surface sensitivity and high lateral resolution. Here, we present results of a Helium Ion Microscopy based investigation of a surface confine…
Helium Ion Microscopy
Gregor Hlawacek, Vasilisa Veligura, Raoul van Gastel +1
Helium Ion Microcopy (HIM) based on Gas Field Ion Sources (GFIS) represents a new ultra high resolution microscopy and nano-fabrication technique. It is an enabling technology that…
The influence of substrate temperature on growth of para-sexiphenyl thin films on Ir{111} supported graphene studied by LEEM
Fawad S. Khokhar, Gregor Hlawacek, Raoul van Gastel +3
The growth of para-sexiphenyl (6P) thin films as a function of substrate temperature on Ir{111} supported graphene flakes has been studied in real-time with Low Energy Electron Mic…
Selecting a single orientation for millimeter sized graphene sheets
R. van Gastel, A. T. N'Diaye, D. Wall +7
We have used Low Energy Electron Microscopy (LEEM) and Photo Emission Electron Microscopy (PEEM) to study and improve the quality of graphene films grown on Ir(111) using chemical…
In situ observation of stress relaxation in epitaxial graphene
Alpha T. N'Diaye, Raoul van Gastel, Antonio J. Martinez-Galera +9
Upon cooling, branched line defects develop in epitaxial graphene grown at high temperature on Pt(111) and Ir(111). Using atomically resolved scanning tunneling microscopy we demon…