Structure of Al(111)-(2x2)-Rb

被引:0
作者
Adams, DL [1 ]
Nielsen, MM
Burchhardt, J
Andersen, JN
机构
[1] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark
[2] Lund Univ, Inst Phys, Dept Synchrotron Radiat Res, S-22362 Lund, Sweden
关键词
D O I
10.1103/PhysRevB.60.11078
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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. [s0163-1829(99)04939-5].
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页码:11078 / 11083
页数:6
相关论文
共 24 条
[1]  
ABRAMOWITZ M, 1970, HDB MATH FUNCTIONS, P452
[2]   MULTILAYER RELAXATION OF THE AL(210) SURFACE [J].
ADAMS, DL ;
JENSEN, V ;
SUN, XF ;
VOLLESEN, JH .
PHYSICAL REVIEW B, 1988, 38 (12) :7913-7931
[3]   New phenomena in the adsorption of alkali metals on Al surfaces [J].
Adams, DL .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1996, 62 (02) :123-142
[4]  
ADAMS DL, 1991, STRUCTURE SURFACES, V3, P156
[6]   STRUCTURAL-ANALYSIS OF THE 2 C(2X2) PHASES OF NA ADSORBED ON AL(100) [J].
BERNDT, W ;
WEICK, D ;
STAMPFL, C ;
BRADSHAW, AM ;
SCHEFFLER, M .
SURFACE SCIENCE, 1995, 330 (02) :182-192
[7]   STRUCTURE OF AL(111)-(ROOT-3X-ROOT-3)R 30-DEGREES-NA - A LEED STUDY [J].
BURCHHARDT, J ;
NIELSEN, MM ;
ADAMS, DL ;
LUNDGREN, E ;
ANDERSEN, JN .
PHYSICAL REVIEW B, 1994, 50 (07) :4718-4724
[8]  
Guinier A, 1963, X-ray Diffraction
[9]  
Hove M.A.V., 1979, SURFACE CRYSTALLOGRA
[10]   Unexpected adsorption sites for potassium and rubidium adsorption on Ag(111) [J].
Leatherman, GS ;
Diehl, RD ;
Kaukasoina, P ;
Lindroos, M .
PHYSICAL REVIEW B, 1996, 53 (15) :10254-10260