STUDY OF THE RECONSTRUCTED (001) SURFACE OF THE PT80CO20 ALLOY

被引：38
作者：
BARDI, U [1 ]
ATREI, A [1 ]
ZANAZZI, E [1 ]
ROVIDA, G [1 ]
ROSS, PN [1 ]
机构：
[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,DIV MAT & MOLEC RES,BERKELEY,CA 94720
来源：
VACUUM | 1990年 / 41卷 / 1-3期
关键词：
D O I：
10.1016/0042-207X(90)90382-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The structure of the clean, (001) oriented single crystal surface of a platinum alloy containing 20 % at of cobalt ('Pt80Co20') was studied. He+ Low Energy Ion Scattering Spectroscopy data indicated that the outermost surface plane of the alloy is composed of virtually pure platinum. Low Energy Electron Diffraction showed a complex pattern which can be interpreted as a c(58 × 22) coincidence unit mesh. A model of the surface can be proposed in terms of a reconstructed surface layer which forms a compact 'quasi-hexagonal' plane. The structure and bond lengths in the outermost plane of Pt80Co20(001) are nearly identical to those of the reconstructed Pt(001) surface. © 1990 Pergamon Press plc.
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页码：437 / 440
页数：4
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