Superconductivity in ba3la2lucu6oy

Takao Watanabe, Kyoichi Kinoshita, Hiroyuki Shibata, Azusa Matsuda, Yoshihiro Asano, Tomoaki Yamada

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Single-phase Ba3La2LuCu6Oy(y͂14) is synthesized. Superconductivity is observed after annealing in oxygen at high pressure; it is a semiconductor without annealing. Power X-ray diffraction shows that annealing changes the crystal structure of Ba3La2LuCu6Oyfrom tetragonal into orthorhombic. Magnetic susceptibility measurements show that Tconset of the annealed sample is around 50 K and about 1% of the volume is superconductive. The analysis shows that the average Cu valence dependence on Tcof Ba3La2LuCu6Oyand Ba2YCu3O7-ydiffers.

Original languageEnglish
Pages (from-to)L1245-L1247
JournalJapanese journal of applied physics
Volume27
Issue number7A
DOIs
Publication statusPublished - 1988 Jul
Externally publishedYes

Keywords

  • Anneal
  • Ba:jLa?LuCu6Ov
  • Crystal structure
  • High-pressure 02
  • Superconductivity

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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    Watanabe, T., Kinoshita, K., Shibata, H., Matsuda, A., Asano, Y., & Yamada, T. (1988). Superconductivity in ba3la2lucu6oy. Japanese journal of applied physics, 27(7A), L1245-L1247. https://doi.org/10.1143/JJAP.27.L1245