Preparation and characterisation of the (0001) surface of single crystal NiIn

被引：5

作者：

Blyth, RIR

Resel, R

Netzer, FP

Ramsey, MG

机构：

[1] Karl Franzens Univ Graz, Inst Expt Phys, A-8010 Graz, Austria

[2] Graz Tech Univ, Inst Festkorperphys, A-8010 Graz, Austria

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2000年 / 305卷 / 1-2期

关键词：

indium alloys; auger spectroscopy; X-ray photoelectron spectroscopy; surface composition; surface structure; surface properties;

D O I：

10.1016/S0925-8388(00)00716-7

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：

NiIn is one of the few intermetallics to adopt the highly unusual CoSn (B35) structure. In this paper we describe the preparation of the clean, ordered (0001) surface of stoichiometric single crystal NiIn in ultra-high vacuum, using Ar ion bombardment and annealing, with characterisation by X-ray photoelectron spectroscopy (XPS), Auger spectroscopy (AES), and low energy electron diffraction (LEED). Preferential sputtering occurs, but a stoichiometric, ordered surface can be obtained by annealing to 700+/-25 K. This surface appears to be a simple hulk termination, with the same lateral periodicity and composition, indicating the stability of the non-close packed indium layers in the CoSn structure. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：202 / 208

页数：7

共 20 条

[1] AN X-RAY PHOTOELECTRON-SPECTROSCOPY STUDY OF THE VALENCE BAND-STRUCTURE OF INDIUM OXIDES [J].