DETERMINATION OF THE NI[001]C(2X2)-CO STRUCTURE BY LOW-ENERGY ELECTRON-DIFFRACTION

被引:122
作者
PASSLER, M
IGNATIEV, A
JONA, F
JEPSEN, DW
MARCUS, PM
机构
[1] SUNY STONY BROOK,DEPT MAT & MET ENGN,STONY BROOK,NY 11794
[2] IBM CORP,THOMAS J WATSON RES CTR,YORKTOWN HTS,NY 10598
关键词
D O I
10.1103/PhysRevLett.43.360
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have resolved the inconsistency between low-energy electron diffraction (LEED) and ultraviolet photoemission spectroscopy (UPS) analyses concerning the orientation of molecular CO when chemisorbed in a c(2×2) structure on the Ni(001) surface. Dynamical analysis of new LEED data indicates that CO stands perpendicular to the Ni surface with the C atom on top of a Ni atom; preliminary results for the Ni-C and C-O separations are 1.72 and 1.15, respectively. © 1979 The American Physical Society.
引用
收藏
页码:360 / 362
页数:3
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