A RESONANCE EELS STUDY OF CO MONOLAYERS ON GRAPHITE

被引：20

作者：

JENSEN, ET

PALMER, RE

机构：

[1] The Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, Madingley Road

来源：

SURFACE SCIENCE | 1990年 / 233卷 / 03期

关键词：

D O I：

10.1016/0039-6028(90)90639-P

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：

An electron energy loss spectroscopy (EELS) study of carbon monoxide monolayers physisorbed on graphite is reported. Negative ion resonances are observed in the vibrational excitation cross sections at beam energies of ∼ 1.6 eV (the 2Π resonance) and ∼ 18 eV (the 2Σ resonance). Resonance electron scattering angular distributions from the 2Σ resonance are used to study the orientational ordering of the CO molecules within the commensurate monolayers, showing that the CO molecular axes are approximately parallel to the surface with some evidence for out-of-plane tilting. © 1990.

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页码：269 / 275

页数：7

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