OVERLAYER STRUCTURE FROM ADSORBATE AND SUBSTRATE CORE-LEVEL BINDING-ENERGY SHIFTS - CO, CCH3 AND O ON PT(111)

被引：166

作者：

BJORNEHOLM, O ^{[1
]}

NILSSON, A ^{[1
]}

TILLBORG, H ^{[1
]}

BENNICH, P ^{[1
]}

SANDELL, A ^{[1
]}

HERNNAS, B ^{[1
]}

PUGLIA, C ^{[1
]}

MARTENSSON, N ^{[1
]}

机构：

[1] UNIV UPPSALA,DEPT PHYS,BOX 530,S-75121 UPPSALA,SWEDEN

来源：

SURFACE SCIENCE | 1994年 / 315卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(94)90530-4

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：

By combining high resolution photoemission measurements of adsorption induced binding energy shifts of both adsorbate and substrate core levels the nature and distribution of adsorption sites in the CO/Pt(111) system can be determined. The existence of different surface shifted components demonstrates the local character of the surface core level shift. This is used to study the O/Pt(111) (2 x 2) and CCH3/Pt(111) ''(2 x 2)'' phases. The intensity relations of the different surface peaks suggest O/Pt(111) to be a true (2 x 2) phase, while the CCH3/Pt(111) ''(2 x 2)'' phase is proposed to consist of three equivalent (2 x 1) domains.

引用

页码：L983 / L989

页数：7

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