Acoustic and optical phonons in metallic diamond

M. Hoesch, T. Fukuda, T. Takenouchi, J. P. Sutter, S. Tsutsui, A. Q R Baron, M. Nagao, Y. Takano, Hiroshi Kawarada, J. Mizuki

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    Abstract

    The dispersion of acoustic and optical phonons in highly boron-doped diamond has been measured by inelastic X-ray scattering at an energy resolution of 6.4 meV. The sample is doped in the metallic regime and shows superconductivity below 4.2 K (midpoint). The data are compared to pure and nitrogen-doped diamond that represent the non-metallic state. No difference is found for the acoustic phonons in the three samples, while the optical phonons show a shift of the dispersion (softening) in qualitative agreement with earlier results from Raman spectroscopy. The presence of boron and nitrogen incorporated into the diamond lattice leads to structural disorder. Evidence for this is found both in the observation of otherwise symmetry-forbidded Bragg intensity at (0 0 2) and intensity from acoustic phonon modes in the vicinity of (0 0 2).

    Original languageEnglish
    Pages (from-to)31-36
    Number of pages6
    JournalScience and Technology of Advanced Materials
    Volume7
    Issue numberSUPPL. 1
    DOIs
    Publication statusPublished - 2006

    Fingerprint

    Diamond
    Phonons
    Diamonds
    Boron
    Acoustics
    Nitrogen
    Inelastic scattering
    Superconductivity
    X ray scattering
    Raman spectroscopy

    Keywords

    • Electron-phonon coupling
    • Hole-doped diamond
    • Lattice dynamics
    • Phonon
    • Superconductivity

    ASJC Scopus subject areas

    • Materials Science(all)

    Cite this

    Hoesch, M., Fukuda, T., Takenouchi, T., Sutter, J. P., Tsutsui, S., Baron, A. Q. R., ... Mizuki, J. (2006). Acoustic and optical phonons in metallic diamond. Science and Technology of Advanced Materials, 7(SUPPL. 1), 31-36. https://doi.org/10.1016/j.stam.2005.11.003

    Acoustic and optical phonons in metallic diamond. / Hoesch, M.; Fukuda, T.; Takenouchi, T.; Sutter, J. P.; Tsutsui, S.; Baron, A. Q R; Nagao, M.; Takano, Y.; Kawarada, Hiroshi; Mizuki, J.

    In: Science and Technology of Advanced Materials, Vol. 7, No. SUPPL. 1, 2006, p. 31-36.

    Research output: Contribution to journalArticle

    Hoesch, M, Fukuda, T, Takenouchi, T, Sutter, JP, Tsutsui, S, Baron, AQR, Nagao, M, Takano, Y, Kawarada, H & Mizuki, J 2006, 'Acoustic and optical phonons in metallic diamond', Science and Technology of Advanced Materials, vol. 7, no. SUPPL. 1, pp. 31-36. https://doi.org/10.1016/j.stam.2005.11.003
    Hoesch M, Fukuda T, Takenouchi T, Sutter JP, Tsutsui S, Baron AQR et al. Acoustic and optical phonons in metallic diamond. Science and Technology of Advanced Materials. 2006;7(SUPPL. 1):31-36. https://doi.org/10.1016/j.stam.2005.11.003
    Hoesch, M. ; Fukuda, T. ; Takenouchi, T. ; Sutter, J. P. ; Tsutsui, S. ; Baron, A. Q R ; Nagao, M. ; Takano, Y. ; Kawarada, Hiroshi ; Mizuki, J. / Acoustic and optical phonons in metallic diamond. In: Science and Technology of Advanced Materials. 2006 ; Vol. 7, No. SUPPL. 1. pp. 31-36.
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    abstract = "The dispersion of acoustic and optical phonons in highly boron-doped diamond has been measured by inelastic X-ray scattering at an energy resolution of 6.4 meV. The sample is doped in the metallic regime and shows superconductivity below 4.2 K (midpoint). The data are compared to pure and nitrogen-doped diamond that represent the non-metallic state. No difference is found for the acoustic phonons in the three samples, while the optical phonons show a shift of the dispersion (softening) in qualitative agreement with earlier results from Raman spectroscopy. The presence of boron and nitrogen incorporated into the diamond lattice leads to structural disorder. Evidence for this is found both in the observation of otherwise symmetry-forbidded Bragg intensity at (0 0 2) and intensity from acoustic phonon modes in the vicinity of (0 0 2).",
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    AU - Sutter, J. P.

    AU - Tsutsui, S.

    AU - Baron, A. Q R

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    AB - The dispersion of acoustic and optical phonons in highly boron-doped diamond has been measured by inelastic X-ray scattering at an energy resolution of 6.4 meV. The sample is doped in the metallic regime and shows superconductivity below 4.2 K (midpoint). The data are compared to pure and nitrogen-doped diamond that represent the non-metallic state. No difference is found for the acoustic phonons in the three samples, while the optical phonons show a shift of the dispersion (softening) in qualitative agreement with earlier results from Raman spectroscopy. The presence of boron and nitrogen incorporated into the diamond lattice leads to structural disorder. Evidence for this is found both in the observation of otherwise symmetry-forbidded Bragg intensity at (0 0 2) and intensity from acoustic phonon modes in the vicinity of (0 0 2).

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    KW - Phonon

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