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.

引用

页码：437 / 440

页数：4

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