Holes in the valence band of superconducting boron-doped diamond film studied by soft X-ray absorption and emission spectroscopy

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dc.creatorNakamura, Jin
dc.creatorOguchi, Tamio
dc.creatorYamada, Nobuyoshi
dc.creatorKuroki, Kazuhiko
dc.creatorOkada, Kozo
dc.creatorTakano, Yoshihiko
dc.creatorNagao, Masanori
dc.creatorSakaguchi, Isao
dc.creatorKawarada, Hiroshi
dc.creatorPerera, Rupert C. C.
dc.creatorEderer, David L.
dc.date2004-10-06
dc.date2004-10-13
dc.date.accessioned2026-07-07T03:01:19Z
dc.date.available2026-07-07T03:01:19Z
dc.descriptionCarbon- and boron-2$p$ states of superconducting and non-superconducting boron-doped diamond samples are measured using soft X-ray emission and absorption spectroscopy. For the superconducting sample, a large density of hole states is observed in the valence band in addition to the states in the impurity band. The hole states in the valence band is located at about 1.3 eV below the valence band maximum regardless of the doping level, which cannot be interpreted within a simple rigid band model. Present experimental results, combined with the first principles calculations, suggest that superconductivity is to be attributed to the holes in the valence band.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0410144
dc.identifierhttp://arxiv.org/abs/cond-mat/0410144
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25017
dc.subjectSuperconductivity
dc.titleHoles in the valence band of superconducting boron-doped diamond film studied by soft X-ray absorption and emission spectroscopy
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