Superconductivity in polycrystalline diamond thin films

Yoshihiko Takano*, Masanori Nagao, Tomohiro Takenouchi, Hitoshi Umezawa, Isao Sakaguchi, Masashi Tachiki, Hiroshi Kawarada

*この研究の対応する著者

研究成果: Conference article査読

69 被引用数 (Scopus)

抄録

Superconductivity was discovered in heavily boron-doped diamond thin films deposited by the microwave plasma assisted chemical vapor deposition (MPCVD) method. Advantages of the MPCVD deposited diamond are the controllability of boron concentration in a wide range, and a high boron concentration, especially in (111) oriented films, compared to that of the high-pressure high-temperature method. The superconducting transition temperatures are determined to be 8.7 K for Tc onset and 5.0 K for zero resistance by transport measurements. And the upper critical field is estimated to be around 7 T.

本文言語English
ページ(範囲)1936-1938
ページ数3
ジャーナルDiamond and Related Materials
14
11-12
DOI
出版ステータスPublished - 2005 11
イベントProceedings of the 10th International Conference on New Diamond Science and Technology (ICNDST-10) ICNDST-10 Special Issue -
継続期間: 2005 5 112005 5 14

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 化学 (全般)
  • 機械工学
  • 物理学および天文学(全般)
  • 材料化学
  • 電子工学および電気工学

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