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

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

Research output: Contribution to journalShort survey

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 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics

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