Structural transitions in bkb and brb

Shu Ichi Nakamura, Yasumasa Koyama, Manabu Ishimaru

Research output: Contribution to journal › Article › peer-review

Abstract

Features of the crystal structures at room temperature and structural transitions in both Ba1-xKxBiO3 and Ba1-xRbxBiO3 with 0.1 < ϗ ≤ 0.5 have been examined in detail by means of electron diffraction. From the analysis of diffraction patterns, it has been confirmed that at room temperature the crystal system changes with respect to ϗ cubic system for ϗ ≥ 0.35 and orthorhombic for 0.1 < ϗ < 0.35. Furthermore, the cubic to orthorhombic structural transition with changing temperature was found to be due to the condensation of the Rx 25 and the RY 25 modes.

Original languageEnglish
Pages (from-to)243-247
Number of pages5
JournalPhase Transitions
Volume41
Issue number1-4
DOIs
Publication statusPublished - 1993 Jan 1

Keywords

  • Ba-superconducting oxides
  • crystal structure
  • electron diffraction
  • structural transition

ASJC Scopus subject areas

  • Instrumentation
  • Materials Science(all)

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