A Surface X-ray Diffraction Study of Hydrogen on Ni(111)
Abstract
Surface X-ray diffraction has been used to study the 2x2 reconstruction of Hydrogen on Nickel (111) at low temperature. In agreement with the previous LEED study of Hammer et al. we observed a small buckling of Ni atoms. This experiment shows that X-ray diffraction is as sensitive as LEED for surface crystallography. Experiments were also carried out at higher temperature on Ni(111) with hydrogen pressures from 10-6mbar to 1 bar. Under these conditions, changes to the surface probably due to hydrogen dissolution are observed.
- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- March 2003
- Bibcode:
- 2003APS..MAR.C1053W