Annealing effects on the Meissner signals from HgBaCaCuO superconductors

Seiji Adachi, Ayako Tokiwa-Yamamoto, Makoto Itoh, Kazuyuki Isawa, H. Yamauchi

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Abstract

As-sintered samples of the HgBaCaCuO superconductors were annealed in flowing argon, flowing oxygen and high-pressure oxygen gases. The superconducting critical temperature, Tc, of the sample increased after annealing in either flowing oxygen or a high-pressure oxygen gas, while it decreased after annealing in flowing argon. These results indicated that the as-sintered samples were in slightly "under-doped" states.

Original languageEnglish
Pages (from-to)313-315
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume214
Issue number3-4
DOIs
Publication statusPublished - 1993 Sep 10

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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