Physics – Condensed Matter – Materials Science
Scientific paper
2008-12-08
Physics
Condensed Matter
Materials Science
4 figures
Scientific paper
Recent scanning tunneling spectroscopy (STM) experiments display images with star and ellipsoidal like features resulting from unique geometrical arrangements of a few adsorbed hydrogen atoms on graphite. Based on first-principles STM simulations, we propose a new model with three hydrogen atoms adsorbed on the graphene sheet in the shape of an equilateral triangle with a hexagon ring surrounded inside. The model reproduces the experimentally observed starlike STM patterns. Additionally, we confirm that an ortho-hydrogen pair is the configuration corresponding to the ellipsoidal images. These calculations reveal that when the hydrogen pairs are in the same orientation, they are energetically more stable.
Bahramy Mohammad Saeed
Kawazoe Yoshiyuki
Khazaei Mohammad
Mizuseki Hiroshi
Ranjbar Ahmad
No associations
LandOfFree
Geometrical indications of adsorbed hydrogen atoms on graphite producing starlike and ellipsoidal features in scanning tunneling microscopy images does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Geometrical indications of adsorbed hydrogen atoms on graphite producing starlike and ellipsoidal features in scanning tunneling microscopy images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometrical indications of adsorbed hydrogen atoms on graphite producing starlike and ellipsoidal features in scanning tunneling microscopy images will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-318617