Ultraviolet photoemission spectroscopy study of ultrahigh-vacuum-fractured CaVO3 surface
作者： Y. Aiura , H. Kawanaka , H. Bando , T. Yasue
DOI: 10.1116/1.1380715
关键词: Surface (mathematics) 、 Electronic structure 、 Photoemission spectroscopy 、 Spectral line 、 Chemistry 、 Molecular physics 、 Ultraviolet 、 Analytical chemistry
摘要: The effect of surface defects on the electronic structure CaVO3 has been studied by ultraviolet photoemission spectroscopy (UPS). We used flat surfaces obtained in situ fracturing single-crystalline samples an ultrahigh vacuum, and rough scraping, which are presumed to contain many defects. It is shown that UPS spectra very sensitive structures, depend cleaning procedure. In addition, oxygen-exposure dependence was investigated order evaluate influence those spectra. conclude observed (both fractured scraped) strongly influenced characteristic surface.
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