The research described in this product was performed in part in the Environmental Molecular Sciences Laboratory, a national scientific user facility sponsored by the Department of Energy's Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory. In situ surface x-ray scattering is used to determine the stable oxygen-induced surface structure on Cu(001)
at high temperatures and under equilibrium oxygen pressure. The structure is composed of a c(2x2)-O adlayer
atop a randomly 3/4-filled Cu layer for temperatures between 473 and 1000 K. Below 473 K, the vacancies in
the topmost Cu layer order to form a (2x square root 2 x square root 2)R45° missing row structure. This order-disorder transition is
confirmed by first-principles calculations.
Revised: January 27, 2012 |
Published: December 27, 2007
Citation
Iddir H., D.D. Fong, P. Zapol, P.H. Fuoss, P.H. Fuoss, L.A. Curtiss, and G.W. Zhou, et al. 2007.Order-disorder Phase Transition of the Cu(001) Surface under Equilibrium Oxygen Pressure.Physical Review. B, Condensed Matter 76, no. 24:241404(R). doi:10.1103/PhysRevB.76.241404