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

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

研究成果: Article

71 引用 (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.

元の言語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
発行部数1-2
DOI
出版物ステータスPublished - 1994 3 10
外部発表Yes

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Encapsulation
Powders
Quartz
synthesis
Oxides
quartz
Gases
tubes
oxides
gases
Temperature

ASJC Scopus subject areas

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

これを引用

Encapsulation method for the synthesis of nearly single-phase superconducting HgBa2Ca2Cu3O8+δ with Tc≥ 135 K. / Isawa, Kazuyuki; Yamamoto, Ayako; Itoh, Makoto; Adachi, Seiji; Yamauchi, H.

:: Physica C: Superconductivity and its Applications, 巻 222, 番号 1-2, 10.03.1994, p. 33-37.

研究成果: Article

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