Temperature-dependent localized excitations of doped carriers in superconducting diamond

K. Ishizaka, R. Eguchi, S. Tsuda, A. Chainani, T. Yokoya, T. Kiss, T. Shimojima, T. Togashi, S. Watanabe, C. T. Chen, Y. Takano, M. Nagao, I. Sakaguchi, T. Takenouchi, Hiroshi Kawarada, S. Shin

    Research output: Contribution to journalArticle

    18 Citations (Scopus)

    Abstract

    Laser-excited photoemission spectroscopy is used to show that the doped carriers in metallic or superconducting diamond couple strongly to the lattice via high-energy (∼150meV) optical phonons, with direct observations of localized Franck-Condon multiphonon sidebands appearing as Fermi-edge replicas. It exhibits a temperature-dependent spectral weight transfer from higher to lower energy sidebands and zero-phonon Fermi-edge states. The quantified coupling strength shows a systematic increase on lowering temperature, implicating its relation to the normal state transport and superconductivity.

    Original languageEnglish
    Article number166402
    JournalPhysical Review Letters
    Volume100
    Issue number16
    DOIs
    Publication statusPublished - 2008 Apr 25

    Fingerprint

    sidebands
    diamonds
    replicas
    excitation
    phonons
    photoelectric emission
    superconductivity
    temperature
    energy
    spectroscopy
    lasers

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Ishizaka, K., Eguchi, R., Tsuda, S., Chainani, A., Yokoya, T., Kiss, T., ... Shin, S. (2008). Temperature-dependent localized excitations of doped carriers in superconducting diamond. Physical Review Letters, 100(16), [166402]. https://doi.org/10.1103/PhysRevLett.100.166402

    Temperature-dependent localized excitations of doped carriers in superconducting diamond. / Ishizaka, K.; Eguchi, R.; Tsuda, S.; Chainani, A.; Yokoya, T.; Kiss, T.; Shimojima, T.; Togashi, T.; Watanabe, S.; Chen, C. T.; Takano, Y.; Nagao, M.; Sakaguchi, I.; Takenouchi, T.; Kawarada, Hiroshi; Shin, S.

    In: Physical Review Letters, Vol. 100, No. 16, 166402, 25.04.2008.

    Research output: Contribution to journalArticle

    Ishizaka, K, Eguchi, R, Tsuda, S, Chainani, A, Yokoya, T, Kiss, T, Shimojima, T, Togashi, T, Watanabe, S, Chen, CT, Takano, Y, Nagao, M, Sakaguchi, I, Takenouchi, T, Kawarada, H & Shin, S 2008, 'Temperature-dependent localized excitations of doped carriers in superconducting diamond', Physical Review Letters, vol. 100, no. 16, 166402. https://doi.org/10.1103/PhysRevLett.100.166402
    Ishizaka, K. ; Eguchi, R. ; Tsuda, S. ; Chainani, A. ; Yokoya, T. ; Kiss, T. ; Shimojima, T. ; Togashi, T. ; Watanabe, S. ; Chen, C. T. ; Takano, Y. ; Nagao, M. ; Sakaguchi, I. ; Takenouchi, T. ; Kawarada, Hiroshi ; Shin, S. / Temperature-dependent localized excitations of doped carriers in superconducting diamond. In: Physical Review Letters. 2008 ; Vol. 100, No. 16.
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    AU - Eguchi, R.

    AU - Tsuda, S.

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    AU - Yokoya, T.

    AU - Kiss, T.

    AU - Shimojima, T.

    AU - Togashi, T.

    AU - Watanabe, S.

    AU - Chen, C. T.

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