Preparation and electrical properties of KCa2-xLaxNb3O10

Daisuke Hamada, Masahiko Machida, Yoshiyuki Sugahara, Kazuyuki Kuroda

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Electron-doped layered perovskite KCa2-xLaxNb3O10 was prepared from KNbO3, Nb2O5, Nb, La2O3 and KCa2Nb3O10 at 1200°C for 10 h under Ar. Essentially single-phase KCa2-xLaxNb3O10 with plate-like morphology was obtained with 0≤x≤0.3, and lattice parameters increased with increasing x. All the La-doped products showed semiconducting behaviour. Linear (log ρ)-T relationships were clearly observed, but the resistivity behaviour deviates from the linear relationship at lower temperatures. A possible conduction mechanism is discussed.

Original languageEnglish
Article number5/05248C
Pages (from-to)69-72
Number of pages4
JournalJournal of Materials Chemistry
Volume6
Issue number1
DOIs
Publication statusPublished - 1996 Jan

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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