TY - JOUR
T1 - Structure of Al(111)-(2x2)-Rb
AU - Adams, D.L.
AU - Nielsen, Martin Meedom
AU - Burchhardt, J.
AU - Andersen, J.N.
PY - 1999
Y1 - 1999
N2 - The atomic geometry of the Al(111)-(2 x 2)-Rb phase formed by adsorption of one-quarter monolayer Rb on Al(111) at 100 K has been determined by analysis of low-energy electron diffraction measurements. The adsorbed Rb atoms are found to occupy on-top sites an a rumpled first layer of Al atoms, as in the corresponding (root 3 x root 3)R30 degrees phases formed by adsorption of one-third monolayer K, Rb, and Cs on Al(111) at low temperature. However, the adsorbed Rb atoms in the (2 x 2) phase have anomoiously large thermal vibrations.
AB - The atomic geometry of the Al(111)-(2 x 2)-Rb phase formed by adsorption of one-quarter monolayer Rb on Al(111) at 100 K has been determined by analysis of low-energy electron diffraction measurements. The adsorbed Rb atoms are found to occupy on-top sites an a rumpled first layer of Al atoms, as in the corresponding (root 3 x root 3)R30 degrees phases formed by adsorption of one-third monolayer K, Rb, and Cs on Al(111) at low temperature. However, the adsorbed Rb atoms in the (2 x 2) phase have anomoiously large thermal vibrations.
U2 - 10.1103/PhysRevB.60.11078
DO - 10.1103/PhysRevB.60.11078
M3 - Journal article
VL - 60
SP - 11078
EP - 11083
JO - Physical Review B (Condensed Matter and Materials Physics)
JF - Physical Review B (Condensed Matter and Materials Physics)
SN - 1098-0121
IS - 15
ER -