J.K. Gimzewski, T.A. Jung, et al.
Surface Science
Chemisorption of oxygen on Ni(001) shows p (2×2) low-energy electron diffraction (LEED) patterns at low exposures changing to c (2×2) at higher exposures. A recent quantum-mechanical cluster calculation and a lattice-dynamical calculation have suggested different vertical heights for the two phases of oxygen. Another ab initio cluster calculation and extended x-ray-absorption fine-structure data indicate a single vertical height, in agreement with earlier LEED studies. More recent LEED calculations, however, do not rule out a closer distance for the c (2×2) phase. A He-diffraction study has just been completed for the c (2×2) and p (2×2) phases. We compare our calculated corrugation with these data and conclude that in both phases oxygen is at a vertical distance of about 0.9. We predict similar results for oxygen on Cu(001). © 1983 The American Physical Society.
J.K. Gimzewski, T.A. Jung, et al.
Surface Science
E. Babich, J. Paraszczak, et al.
Microelectronic Engineering
Elizabeth A. Sholler, Frederick M. Meyer, et al.
SPIE AeroSense 1997
A. Krol, C.J. Sher, et al.
Surface Science