I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
The c(2×2) surface phase obtained from deposition of submonolayer amounts of Pd onto a clean Cu{001} surface is proven to have a top layer consisting of an ordered 50%-50% mixture of Pd and Cu atoms, and no ordered content in deeper layers, analogous to the structure found for Cu{001}c(2×2)-Au. The structure of the top layer is almost planar, with the Pd atoms located 0.020.03 A outwards from the Cu atoms, and an interlayer distance from the Cu atoms to second (100% Cu) layer equal to the Cu{001} bulk interlayer spacing (1.807 A). Angle-resolved photoemission spectra show that the valence band of the surface alloy is characterized by a well-defined Cu 3d derived band and by the appearance of features due to Pd. The narrower width of the observed photoemission peaks compared with the valence band of Cu-rich Cu-Pd alloys studied by others confirms the ordered-alloy nature of the Cu{001}c(2×2)-Pd surface phase. © 1988 The American Physical Society.
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
Elizabeth A. Sholler, Frederick M. Meyer, et al.
SPIE AeroSense 1997
R.W. Gammon, E. Courtens, et al.
Physical Review B
Hiroshi Ito, Reinhold Schwalm
JES