High-Resolution Transmission Electron Microscopy Observations on Antiphase Boundaries in Barium Lanthanum Magnesium Niobate

Hwack Joo Lee; Hyun Min Park; Yong Won Song; Yang Koo Cho; Sahn Nahm

doi:10.1111/j.1151-2916.2001.tb00936.x

High-Resolution Transmission Electron Microscopy Observations on Antiphase Boundaries in Barium Lanthanum Magnesium Niobate

Hwack Joo Lee, Hyun Min Park, Yong Won Song, Yang Koo Cho, Sahn Nahm

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

Abstract

Atomic structural observations on the antiphase boundaries (APBs) in the complex barium lanthanum magnesium niobate perovskite compound Ba_0.7La_0.3(Mg_0.43Nb_0.57)O ₃ (BLMN), which has a 1:1 chemical ordering of B-site cations, were conducted using high-resolution transmission electron microscopy. Using APB contrast, the curved APB was determined to have a ledged structure, with a terrace that was composed of the (111) plane at an atomic level. In APBs with finite widths, microfacets on the (111) planes also were observed.

Original language	English
Pages (from-to)	1909-1911
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	84
Issue number	8
DOIs	https://doi.org/10.1111/j.1151-2916.2001.tb00936.x
Publication status	Published - 2001 Aug

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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Lee, H. J., Park, H. M., Song, Y. W., Cho, Y. K., & Nahm, S. (2001). High-Resolution Transmission Electron Microscopy Observations on Antiphase Boundaries in Barium Lanthanum Magnesium Niobate. Journal of the American Ceramic Society, 84(8), 1909-1911. https://doi.org/10.1111/j.1151-2916.2001.tb00936.x

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abstract = "Atomic structural observations on the antiphase boundaries (APBs) in the complex barium lanthanum magnesium niobate perovskite compound Ba0.7La0.3(Mg0.43Nb0.57)O 3 (BLMN), which has a 1:1 chemical ordering of B-site cations, were conducted using high-resolution transmission electron microscopy. Using APB contrast, the curved APB was determined to have a ledged structure, with a terrace that was composed of the (111) plane at an atomic level. In APBs with finite widths, microfacets on the (111) planes also were observed.",

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