Microscopic evidence for evolution of superconductivity by effective carrier doping in boron-doped diamond: B11 -NMR study

H. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi, T. Oguchi, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    34 Citations (Scopus)

    Abstract

    We have investigated the superconductivity discovered in boron-doped diamonds by means of B11 -NMR on heteroepitaxially grown (111) and (100) films. B11 -NMR spectra for all of the films are identified to arise from the substitutional B(1) site as single occupation and lower symmetric B(2) site substituted as boron+hydrogen (B+H) complex, respectively. Clear evidence is presented that the effective carriers introduced by B(1) substitution are responsible for the superconductivity, whereas the charge neutral B(2) sites does not offer the carriers effectively. The result is also corroborated by the density of states deduced by 1 T1 T measurement, indicating that the evolution of superconductivity is driven by the effective carrier introduced by substitution at B(1) site.

    Original languageEnglish
    Article number033301
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume75
    Issue number3
    DOIs
    Publication statusPublished - 2007

    Fingerprint

    Diamond
    Boron
    Superconductivity
    Diamonds
    boron
    superconductivity
    diamonds
    Doping (additives)
    Nuclear magnetic resonance
    nuclear magnetic resonance
    Substitution reactions
    substitutes
    occupation
    Hydrogen
    hydrogen

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Microscopic evidence for evolution of superconductivity by effective carrier doping in boron-doped diamond : B11 -NMR study. / Mukuda, H.; Tsuchida, T.; Harada, A.; Kitaoka, Y.; Takenouchi, T.; Takano, Y.; Nagao, M.; Sakaguchi, I.; Oguchi, T.; Kawarada, Hiroshi.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 75, No. 3, 033301, 2007.

    Research output: Contribution to journalArticle

    Mukuda, H. ; Tsuchida, T. ; Harada, A. ; Kitaoka, Y. ; Takenouchi, T. ; Takano, Y. ; Nagao, M. ; Sakaguchi, I. ; Oguchi, T. ; Kawarada, Hiroshi. / Microscopic evidence for evolution of superconductivity by effective carrier doping in boron-doped diamond : B11 -NMR study. In: Physical Review B - Condensed Matter and Materials Physics. 2007 ; Vol. 75, No. 3.
    @article{dcae8646261847fabf052a0240606b7a,
    title = "Microscopic evidence for evolution of superconductivity by effective carrier doping in boron-doped diamond: B11 -NMR study",
    abstract = "We have investigated the superconductivity discovered in boron-doped diamonds by means of B11 -NMR on heteroepitaxially grown (111) and (100) films. B11 -NMR spectra for all of the films are identified to arise from the substitutional B(1) site as single occupation and lower symmetric B(2) site substituted as boron+hydrogen (B+H) complex, respectively. Clear evidence is presented that the effective carriers introduced by B(1) substitution are responsible for the superconductivity, whereas the charge neutral B(2) sites does not offer the carriers effectively. The result is also corroborated by the density of states deduced by 1 T1 T measurement, indicating that the evolution of superconductivity is driven by the effective carrier introduced by substitution at B(1) site.",
    author = "H. Mukuda and T. Tsuchida and A. Harada and Y. Kitaoka and T. Takenouchi and Y. Takano and M. Nagao and I. Sakaguchi and T. Oguchi and Hiroshi Kawarada",
    year = "2007",
    doi = "10.1103/PhysRevB.75.033301",
    language = "English",
    volume = "75",
    journal = "Physical Review B-Condensed Matter",
    issn = "0163-1829",
    publisher = "American Institute of Physics Publising LLC",
    number = "3",

    }

    TY - JOUR

    T1 - Microscopic evidence for evolution of superconductivity by effective carrier doping in boron-doped diamond

    T2 - B11 -NMR study

    AU - Mukuda, H.

    AU - Tsuchida, T.

    AU - Harada, A.

    AU - Kitaoka, Y.

    AU - Takenouchi, T.

    AU - Takano, Y.

    AU - Nagao, M.

    AU - Sakaguchi, I.

    AU - Oguchi, T.

    AU - Kawarada, Hiroshi

    PY - 2007

    Y1 - 2007

    N2 - We have investigated the superconductivity discovered in boron-doped diamonds by means of B11 -NMR on heteroepitaxially grown (111) and (100) films. B11 -NMR spectra for all of the films are identified to arise from the substitutional B(1) site as single occupation and lower symmetric B(2) site substituted as boron+hydrogen (B+H) complex, respectively. Clear evidence is presented that the effective carriers introduced by B(1) substitution are responsible for the superconductivity, whereas the charge neutral B(2) sites does not offer the carriers effectively. The result is also corroborated by the density of states deduced by 1 T1 T measurement, indicating that the evolution of superconductivity is driven by the effective carrier introduced by substitution at B(1) site.

    AB - We have investigated the superconductivity discovered in boron-doped diamonds by means of B11 -NMR on heteroepitaxially grown (111) and (100) films. B11 -NMR spectra for all of the films are identified to arise from the substitutional B(1) site as single occupation and lower symmetric B(2) site substituted as boron+hydrogen (B+H) complex, respectively. Clear evidence is presented that the effective carriers introduced by B(1) substitution are responsible for the superconductivity, whereas the charge neutral B(2) sites does not offer the carriers effectively. The result is also corroborated by the density of states deduced by 1 T1 T measurement, indicating that the evolution of superconductivity is driven by the effective carrier introduced by substitution at B(1) site.

    UR - http://www.scopus.com/inward/record.url?scp=33846375501&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=33846375501&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevB.75.033301

    DO - 10.1103/PhysRevB.75.033301

    M3 - Article

    AN - SCOPUS:33846375501

    VL - 75

    JO - Physical Review B-Condensed Matter

    JF - Physical Review B-Condensed Matter

    SN - 0163-1829

    IS - 3

    M1 - 033301

    ER -