Suppression of a site charge disproportionation in Bi1-xLa xNiO3

Shintaro Ishiwata, Masaki Azuma, Mikio Takano, Eiji Nishibori, Masaki Takata, Makoto Sakata

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The effect of the La substitution for Bi in newly found triclinic perovskite BiNiO3 was examined. The charge disproportionation of Bi ions into Bi3+ and Bi5+ was suppressed by 20% substitution. Bi0.8La0.2NiO3 showed a metal-insulator transition at around 300 K.

Original languageEnglish
Pages (from-to)813-814
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberII
Publication statusPublished - 2003 May


  • BiNiO
  • Bond valence sum
  • Charge disproportionation
  • Metal-insulator transition
  • Perovskite
  • Synchrotron powder XRD


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