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)

被引：26

作者：

HILGERS, G ^{[1
]}

POTTHOFF, M ^{[1
]}

MULLER, N ^{[1
]}

HEINZMANN, U ^{[1
]}

机构：

[1] UNIV BIELEFELD,FAK PHYS,D-33501 BIELEFELD,GERMANY

来源：

SURFACE SCIENCE | 1995年 / 322卷 / 1-3期

关键词：

ADATOMS; ELECTRON-SOLID INTERACTIONS; SCATTERING; DIFFRACTION; LOW ENERGY ELECTRON DIFFRACTION (LEED); LOW INDEX SINGLE CRYSTAL SURFACES; METALLIC SURFACES; PALLADIUM; SURFACE STRUCTURE; MORPHOLOGY; ROUGHNESS; AND TOPOGRAPHY;

D O I：

10.1016/0039-6028(95)90031-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The adsorbate systems (root 3 x root 3)R30 degrees-Xe/Pd(111) and the 'dilute' phase of Xe/Pd(111) were investigated with spin-polarized low-energy electron diffraction (SPLEED). Spin-polarized electrons from a GaAs source were scattered and the spin-dependent intensities were measured. Comparative calculations were carried out by means of a relativistic LEED program. The structure determination of (root 3 x root 3)R30 degrees-Xe/Pd(111) yields a layer distance of 3.5+/-0.1 Angstrom, the Xe atoms being adsorbed in hollow sites. In the 'dilute' phase of Xe/Pd(111) the adsorbed Xe atoms occupy on-top sites with a Xe-Pd distance of 4.0+/-0.1 Angstrom without two-dimensional periodicity.

引用

页码：207 / 220

页数：14

共 24 条

[1] ANGLE-RESOLVED PHOTOEMISSION OF XENON ADSORBED ON PT(111) - COMMENSURATE AND INCOMMENSURATE MONOLAYERS [J].