Evolution of a ferroelastic domain structure in an incommensurate phase of barium sodium niobate (Ba2NaNb5O15)

S. Mori, N. Yamamoto, Yasumasa Koyama, Y. Uesu

    Research output: Contribution to journalArticle

    27 Citations (Scopus)

    Abstract

    Features of a ferroelastic domain structure in an incommensurate phase of barium sodium niobate [Ba2NaNb2O15 (BSN)] that appear in the cooling process were investigated by means of a transmission electron microscope. The in situ observation revealed that there exists an abrupt change in the domain structure around 503 K. The ferroelastic domain structure above 503 K basically consists of two types of 1q ferroelastic microdomains with a size of about 20 nm while below it large ferroelastic domains with flat domain boundaries are formed.

    Original languageEnglish
    Pages (from-to)6158-6161
    Number of pages4
    JournalPhysical Review B
    Volume52
    Issue number9
    DOIs
    Publication statusPublished - 1995

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    niobates
    Barium
    barium
    Electron microscopes
    Sodium
    sodium
    Cooling
    electron microscopes
    sodium niobate
    cooling

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Evolution of a ferroelastic domain structure in an incommensurate phase of barium sodium niobate (Ba2NaNb5O15). / Mori, S.; Yamamoto, N.; Koyama, Yasumasa; Uesu, Y.

    In: Physical Review B, Vol. 52, No. 9, 1995, p. 6158-6161.

    Research output: Contribution to journalArticle

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    AU - Uesu, Y.

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    AB - Features of a ferroelastic domain structure in an incommensurate phase of barium sodium niobate [Ba2NaNb2O15 (BSN)] that appear in the cooling process were investigated by means of a transmission electron microscope. The in situ observation revealed that there exists an abrupt change in the domain structure around 503 K. The ferroelastic domain structure above 503 K basically consists of two types of 1q ferroelastic microdomains with a size of about 20 nm while below it large ferroelastic domains with flat domain boundaries are formed.

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