Unreconstructed Au(100) monolayers on a Au3Pd(100) single-crystal surface

被引：19

作者：

Aschoff, M

Speller, S

Kuntze, J

Heiland, W

Platzgummer, E

Schmid, M

Varga, P

Baretzky, B

机构：

[1] Univ Osnabruck, Fachbereich Phys, D-49069 Osnabruck, Germany

[2] Vienna Univ Technol, A-1040 Vienna, Austria

[3] MPI Met Phys, D-70174 Stuttgart, Germany

来源：

SURFACE SCIENCE | 1998年 / 415卷 / 03期

基金：

奥地利科学基金会;

关键词：

gold alloys; low-energy ion scattering (LEIS); scanning tunneling microscopy (STM); single-crystal surfaces; surface structure;

D O I：

10.1016/S0039-6028(98)00564-0

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 Au3Pd(100) single-crystal surface was studied with ion scattering methods, low-energy electron diffraction (LEED) and scanning tunneling microscopy. The crystal is covered at room temperature with a pure, (100)-ordered gold layer. Palladium is found in the second layer only. The lattice constant of the gold surface as evaluated by ion scattering and a tensor low-energy electron diffraction (TLEED) analysis is equal to the bulk lattice constant of 4.017 Angstrom as evaluated by X-ray analysis. The surface lattice constant of the gold layer on the alloy surface is 0.08 Angstrom smaller than that of bulk gold. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：L1051 / L1054

页数：4

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