11B-NMR study in boron-doped diamond films

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

研究成果: Article

16 引用 (Scopus)


We have investigated an origin of the superconductivity discovered in boron (B)-doped diamonds by means of 11B-NMR on heteroepitaxially grown (1 1 1) and (1 0 0) films and polycrystalline film. The characteristic difference of B-NMR spectral shape for the (1 1 1) and (1 0 0) thin films is demonstrated as arising from the difference in the concentration (nB (1)) of boron substituted for carbon. It is revealed from a scaling between a superconducting transition temperature Tc and nB (1) that the holes doped into diamond via the substitution of boron for carbon are responsible for the onset of superconductivity. The result suggests that the superconductivity in boron-doped diamond is mediated by the electron-phonon interaction brought about a high Debye temperature ∼ 1860 K characteristic for the diamond structure.

ジャーナルScience and Technology of Advanced Materials
発行部数SUPPL. 1
出版物ステータスPublished - 2006 1 1

ASJC Scopus subject areas

  • Materials Science(all)

フィンガープリント <sup>11</sup>B-NMR study in boron-doped diamond films' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Mukuda, H., Tsuchida, T., Harada, A., Kitaoka, Y., Takenouchi, T., Takano, Y., Nagao, M., Sakaguchi, I., & Kawarada, H. (2006). 11B-NMR study in boron-doped diamond films. Science and Technology of Advanced Materials, 7(SUPPL. 1), S37-S40.