Low-temperature synthesis of (La,Sm)2CuO4 with the T′-structure from molten hydroxides

Yoshinori Imai, Masatsune Kato, Yuichiro Takarabe, Takashi Noji, Tadashi Adachi, Yoji Koike

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Well-crystallized bulk samples of La2-xSmxCuO4 have been successfully synthesized by the direct precipitation from the molten KOH/NaOH eutectic mixture at 350 °C. The samples with the Nd2CuO4-type(T′) structure have been obtained for 0.3 ≦ x ≦ 2. On the other hand, the samples synthesized by the conventional solid-state reaction method at 900 °C have the T′-structure for 1 ≦ x ≦ 2. These results indicate that the phase with the T′-structure becomes stable at low temperatures. The sample of T′-La1.5Sm0.5CuO4 annealed at 635 °C for 150 h in vacuum, however, has shown no superconductivity.

本文言語English
ページ(範囲)395-396
ページ数2
ジャーナルPhysica C: Superconductivity and its applications
460-462 I
SPEC. ISS.
DOI
出版ステータスPublished - 2007 9 1

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

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