Document Type

Article

Publication Date

4-15-1993

Journal or Book Title

Physical Review B

Volume

47

Issue

16

First Page

10848

Last Page

10851

DOI

10.1103/PhysRevB.47.10848

Abstract

Based on He-atom diffraction evidence for an order-disorder transition on Pd(110) at 230 K, other authors have proposed a model in which the atoms of the topmost layer are displaced laterally by 0.7 Å along the [001] direction, with the directions of the displacements correlated at T<230 K, but largely uncorrelated at T>230 K. To test this model, we have examined the proposed ordered phase by dynamical low-energy electron-diffraction analysis. Our results favor a nonlaterally displaced geometry, with a contraction of 4.4±1.5% in the first interlayer spacing and an expansion of 1.5±1.5% in the second interlayer spacing, but do not conclusively rule out the possibility of lateral displacements

Comments

This article is from Physical Review B 47, no. 16 (1993): 10848–10851, doi:10.1103/PhysRevB.47.10848.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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