Interfacial structure of ordered domains in barium lanthanum magnesium niobate

Hwack Joo Lee, Hyun Ryu, Hyun Min Park, Jong Hoo Paik, Sahn Nahm, Jae Dong Byun

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6 Citations (Scopus)

Abstract

Microstructural studies on the interfacial boundaries of 1:1 and 1:2 ordered domains in (Ba0.9La0.1)(Mg0.37Nb0.63)O 3 were conducted using high-resolution transmission electron microscopy and X-ray diffractometry. Both 1:2 and 1:1 ordered domains coexisted in a fully ordered single grain. Each ordered domain occupied its own region, and the interfaces were atomically sharp and coherent. The wavelength of the superlattice modulation was ∼0.47 nm in the 1:1 ordered domain and ∼0.71 nm in the 1:2 ordered domain. The transition from the 1:2 ordered region to the 1:1 ordered region was clearly shown at the interface. These observations well support the structural models that have been previously presented.

Original languageEnglish
Pages (from-to)1685-1688
Number of pages4
JournalJournal of the American Ceramic Society
Volume81
Issue number6
Publication statusPublished - 1998 Jun 1

ASJC Scopus subject areas

  • Ceramics and Composites

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    Lee, H. J., Ryu, H., Park, H. M., Paik, J. H., Nahm, S., & Byun, J. D. (1998). Interfacial structure of ordered domains in barium lanthanum magnesium niobate. Journal of the American Ceramic Society, 81(6), 1685-1688.