TY - JOUR
T1 - Formation of surface ternary alloys by coadsorption of alkali metals on Al(111)
AU - Christensen, S.V.
AU - Nerlov, J.
AU - Nielsen, K.
AU - Burchhardt, J.
AU - Nielsen, Martin Meedom
AU - Adams, D.L.
PY - 1996
Y1 - 1996
N2 - Coadsorption of one-quarter monolayer Na with one-quarter monolayer K, Rb, or Cs on Al(111) at 300 K is shown to result in the formation of surface ternary alloys with (2 X 2) unit cells. Chemical shifts in core electron binding energies and quantitative analyses by low energy electron diffraction indicate that the first four surface layers consist in each case of an X-Al-Na sandwich (X = K, Rb, or Cs) on a reconstructed Al substrate layer. The lower layer of the sandwich always contains Na, irrespective of the adsorption sequence.
AB - Coadsorption of one-quarter monolayer Na with one-quarter monolayer K, Rb, or Cs on Al(111) at 300 K is shown to result in the formation of surface ternary alloys with (2 X 2) unit cells. Chemical shifts in core electron binding energies and quantitative analyses by low energy electron diffraction indicate that the first four surface layers consist in each case of an X-Al-Na sandwich (X = K, Rb, or Cs) on a reconstructed Al substrate layer. The lower layer of the sandwich always contains Na, irrespective of the adsorption sequence.
U2 - 10.1103/PhysRevLett.76.1892
DO - 10.1103/PhysRevLett.76.1892
M3 - Journal article
SN - 0031-9007
VL - 76
SP - 1892
EP - 1895
JO - Physical Review Letters
JF - Physical Review Letters
IS - 11
ER -