Encapsulation method for the synthesis of nearly single-phase superconducting HgBa2Ca2Cu3O8+δ with Tc≥ 135 K

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

研究成果: Article査読

71 被引用数 (Scopus)

抄録

Nearly single-phase polycrystalline samples of HgBa2Ca2Cu3O8+δ were successfully synthesized under relatively simple and unprecedented synthesis conditions, i.e. at a "low" temperature (<700°C) and for a "long" period of time (5-168h), using mono-oxide powders of Hg, Ba, Ca, and Cu as starting materials. A pressed powder mixture was heated at 665°C for ≈75 h in an evacuated fused quartz tube, and then post-annealed in flowing O2 gas to exhibit a Meissner signal below 135.4 K. Zero resistance of this sample was observed at 133.9 K.

本文言語English
ページ(範囲)33-37
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
222
1-2
DOI
出版ステータスPublished - 1994 3 10
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

フィンガープリント

「Encapsulation method for the synthesis of nearly single-phase superconducting HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>8+δ</sub> with T<sub>c</sub>≥ 135 K」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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