Hydrogen adsorption on a TiC(111) surface: angle-resolved photoemission study

Angle-resolved photoemission spectroscopy (ARPES) utilizing synchrotron radiation has been used to study the adsorption of hydrogen on a TiC(111) surface at 300 K. This system was studied by Bradshaw et al. [Solid State Commun. 37 (1980) 37] using ARPES and their results are well reproduced in this...

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Bibliographic Details
Published in:Surface science 1992-05, Vol.269-270, p.389-393
Main Authors: EDAMOTO, K, MIYAZAKI, E, ANAZAWA, T, MOCHIDA, A, KATO, H
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Solid-gas interface
Surface physical chemistry
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Summary:Angle-resolved photoemission spectroscopy (ARPES) utilizing synchrotron radiation has been used to study the adsorption of hydrogen on a TiC(111) surface at 300 K. This system was studied by Bradshaw et al. [Solid State Commun. 37 (1980) 37] using ARPES and their results are well reproduced in this study. Furthermore, the two-dimensional band structure of the H 1s-induced state (which is found at 6.5 eV at the Γ point) along the ΓM and ΓK directions is directions is fully determined. The result shows that the bandwidth of this state is 1.1 eV. This band-width correlates well with those of metal-H adsorption systems. An H-induced surface state is also found at just below EF in off-normal-emission spectra.
ISSN:0039-6028
1879-2758
DOI:10.1016/0039-6028(92)91280-O