Rapid low-temperature synthesis of superconducting (Ba,K)BiO3 using molten KOH

Masatsune Kato, Seigo Shitara, Ken Ichi Nemoto, Takefumi Minakawa, Takashi Noji, Yoji Koike

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3 Citations (Scopus)

Abstract

Polycrystalline samples of perovskite Ba1-xKxK xBiO3 with a wide range of x have successfully been synthesized in a quite short heating time of several minutes at a temperature as low as 290°C using molten KOH. The powder X-ray diffraction patterns have revealed the formation of well-crystallized Ba1-xK xBiO3. The maximum value of the superconducting transition temperature Is ∼30 K observed at x ∼ 0.34 in the magnetic susceptibility measurements. The superconducting volume fraction drastically decreases for x < 0.37. These results are in good agreement with those of samples obtained by the conventional solid-state reaction method.

Original languageEnglish
Article number010214
JournalJapanese journal of applied physics
Volume48
Issue number1
DOIs
Publication statusPublished - 2009 Jan 20

ASJC Scopus subject areas

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

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