Abstract
Ultraviolet Photoemission analysis of yttrium metal reveals well defined features far below the conduction band. In order to elucidate their origin, we have used X-ray/Ultra violet photoelectron spectroscopy together with inverse photoemission. The comparison of the spectra of “clean” yttrium and of H exposed yttrium suggests that these structures are most probably due to hydrogen bands, hydrogen being either in a stable surface hydride form or as subsurface H.
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Baptist, R., Pellissier, A. & Chauvet, G. On the origin of additional peaks in the photoelectron spectra of yttrium. Z. Physik B - Condensed Matter 73, 107–114 (1988). https://doi.org/10.1007/BF01312161
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DOI: https://doi.org/10.1007/BF01312161