Structural transitions in bkb and brb

Shu Ichi Nakamura, Yasumasa Koyama, Manabu Ishimaru

    Research output: Contribution to journalArticle

    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

    Fingerprint

    room temperature
    diffraction patterns
    electron diffraction
    condensation
    Electron diffraction
    Temperature
    Diffraction patterns
    crystal structure
    Condensation
    Crystal structure
    crystals
    Crystals
    temperature

    Keywords

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

    ASJC Scopus subject areas

    • Materials Science(all)
    • Instrumentation

    Cite this

    Structural transitions in bkb and brb. / Nakamura, Shu Ichi; Koyama, Yasumasa; Ishimaru, Manabu.

    In: Phase Transitions, Vol. 41, No. 1-4, 01.01.1993, p. 243-247.

    Research output: Contribution to journalArticle

    Nakamura, Shu Ichi ; Koyama, Yasumasa ; Ishimaru, Manabu. / Structural transitions in bkb and brb. In: Phase Transitions. 1993 ; Vol. 41, No. 1-4. pp. 243-247.
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