Soft X-ray core-level photoemission study of boron sites in heavily boron-doped diamond films

Hiroyuk Okazaki, Rikiya Yoshida, Takayuki Muro, Takanori Wakita, Masaaki Hirai, Yuji Muraoka, Yoshihiko Takano, Shingo Iriyama, Hiroshi Kawarada, Tamio Oguchi, Takayoshi Yokoya

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    We have performed high-resolution soft x-ray B 1s core-level photoemission spectroscopy of heavily boron-doped diamond films in order to study the chemical sites of doped-boron atoms and their relation to the superconducting transition temperature (T c). We find that B 1s core-level spectra exhibit several fine structures and three bulk components can be resolved from photon energy dependent studies and spectral fittings. These results indicate existence of several chemical environments of doped-boron atoms. One of the bulk components having the lowest binding energy can be assigned to a signal from substitutionally doped-boron atoms. Comparisons of bulk components with T c suggest spectroscopic evidence for the importance of substitutionally doped-boron atoms for effective carrier and superconductivity.

    Original languageEnglish
    Article number034703
    JournalJournal of the Physical Society of Japan
    Volume78
    Issue number3
    DOIs
    Publication statusPublished - 2009 Mar

    Fingerprint

    diamond films
    boron
    photoelectric emission
    x rays
    atoms
    superconductivity
    binding energy
    fine structure
    transition temperature
    high resolution
    photons
    spectroscopy
    energy

    Keywords

    • Core-level
    • Photoemission spectroscopy
    • Superconducting materials

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Okazaki, H., Yoshida, R., Muro, T., Wakita, T., Hirai, M., Muraoka, Y., ... Yokoya, T. (2009). Soft X-ray core-level photoemission study of boron sites in heavily boron-doped diamond films. Journal of the Physical Society of Japan, 78(3), [034703]. https://doi.org/10.1143/JPSJ.78.034703

    Soft X-ray core-level photoemission study of boron sites in heavily boron-doped diamond films. / Okazaki, Hiroyuk; Yoshida, Rikiya; Muro, Takayuki; Wakita, Takanori; Hirai, Masaaki; Muraoka, Yuji; Takano, Yoshihiko; Iriyama, Shingo; Kawarada, Hiroshi; Oguchi, Tamio; Yokoya, Takayoshi.

    In: Journal of the Physical Society of Japan, Vol. 78, No. 3, 034703, 03.2009.

    Research output: Contribution to journalArticle

    Okazaki, H, Yoshida, R, Muro, T, Wakita, T, Hirai, M, Muraoka, Y, Takano, Y, Iriyama, S, Kawarada, H, Oguchi, T & Yokoya, T 2009, 'Soft X-ray core-level photoemission study of boron sites in heavily boron-doped diamond films', Journal of the Physical Society of Japan, vol. 78, no. 3, 034703. https://doi.org/10.1143/JPSJ.78.034703
    Okazaki, Hiroyuk ; Yoshida, Rikiya ; Muro, Takayuki ; Wakita, Takanori ; Hirai, Masaaki ; Muraoka, Yuji ; Takano, Yoshihiko ; Iriyama, Shingo ; Kawarada, Hiroshi ; Oguchi, Tamio ; Yokoya, Takayoshi. / Soft X-ray core-level photoemission study of boron sites in heavily boron-doped diamond films. In: Journal of the Physical Society of Japan. 2009 ; Vol. 78, No. 3.
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    abstract = "We have performed high-resolution soft x-ray B 1s core-level photoemission spectroscopy of heavily boron-doped diamond films in order to study the chemical sites of doped-boron atoms and their relation to the superconducting transition temperature (T c). We find that B 1s core-level spectra exhibit several fine structures and three bulk components can be resolved from photon energy dependent studies and spectral fittings. These results indicate existence of several chemical environments of doped-boron atoms. One of the bulk components having the lowest binding energy can be assigned to a signal from substitutionally doped-boron atoms. Comparisons of bulk components with T c suggest spectroscopic evidence for the importance of substitutionally doped-boron atoms for effective carrier and superconductivity.",
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    AU - Muro, Takayuki

    AU - Wakita, Takanori

    AU - Hirai, Masaaki

    AU - Muraoka, Yuji

    AU - Takano, Yoshihiko

    AU - Iriyama, Shingo

    AU - Kawarada, Hiroshi

    AU - Oguchi, Tamio

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