Dynamical LEED study of Pd(111)-(√3x√3)R30°-Xe -: art. no. 195411

被引:25
作者
Caragiu, M [1 ]
Seyller, T [1 ]
Diehl, RD [1 ]
机构
[1] Penn State Univ, Dept Phys, University Pk, PA 16802 USA
来源
PHYSICAL REVIEW B | 2002年 / 66卷 / 19期
关键词
D O I
10.1103/PhysRevB.66.195411
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A low-energy electron diffraction (LEED) study of Pd(111)-(root3xroot3)R30degrees-Xe at 77 K indicates that the Xe adsorption site is on top of the Pd atoms. The Xe-Pd bond length is 3.07 Angstrom+/-0.06 Angstrom. The substrate structure is essentially unrelaxed from the bulk structure. These results contrast with an earlier spin-polarized LEED study, which indicated that hollow sites are occupied in this structure. The low-coordination-site geometry for Xe on Pd(111) is discussed in the context of earlier experimental studies and recent density functional theory results for Xe adsorption on metal surfaces.
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页数:6
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共 28 条
[1]  
Barbieri A., Private Communication
[2]   THE INTERACTION OF XE WITH THE PT(111) SURFACE [J].
BARKER, JA ;
RETTNER, CT ;
BETHUNE, DS .
CHEMICAL PHYSICS LETTERS, 1992, 188 (5-6) :471-476
[3]   STRUCTURE AND PROPERTIES OF POTASSIUM ON PD(100) SURFACE [J].
BERKO, A ;
SOLYMOSI, F .
SURFACE SCIENCE, 1987, 187 (2-3) :359-371
[4]   √7R19.1° superlattice of Ar/Ag(111) -: art. no. 033407 [J].
Bruch, LW .
PHYSICAL REVIEW B, 2001, 64 (03)
[5]   Vibrations of the commensurate monolayer solid Xe/Pt(111) [J].
Bruch, LW ;
Graham, AP ;
Toennies, JP .
MOLECULAR PHYSICS, 1998, 95 (03) :579-585
[6]  
BRUCH LW, 1997, PHYSICAL ADSORPTION
[7]  
DASILVA JLF, UNPUB PHYS REV LETT
[8]   Structural studies of alkali metal adsorption and coadsorption on metal surfaces [J].
Diehl, RD ;
McGrath, R .
SURFACE SCIENCE REPORTS, 1996, 23 (2-5) :43-+
[9]   ENERGY AND STRUCTURE OF UNIAXIAL INCOMMENSURATE MONOLAYER SOLIDS - APPLICATION TO XE/PT(111) [J].
GOTTLIEB, JM .
PHYSICAL REVIEW B, 1990, 42 (08) :5377-5380
[10]   STRUCTURE INVESTIGATIONS OF XE-ADSORBATE LAYERS BY SPIN-POLARIZED LOW-ENERGY-ELECTRON DIFFRACTION .2. (ROOT-3X-ROOT-3)R30-DEGREES-XE PD(111) AND THE DILUTE PHASE OF XE PD(111) [J].
HILGERS, G ;
POTTHOFF, M ;
MULLER, N ;
HEINZMANN, U .
SURFACE SCIENCE, 1995, 322 (1-3) :207-220