Interfacial structure of disordered-ordered domain boundaries in lanthanum-doped barium magnesium niobate

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

doi:10.1111/j.1151-2916.1998.tb02779.x

Interfacial structure of disordered-ordered domain boundaries in lanthanum-doped barium magnesium niobate

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

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Microstructural studies on the interfacial boundaries of disordered and 1:2 ordered domains in lanthanum-doped (Ba_0.975La_0.025)(Mg_0.34Nb_0.66)O ₃ were performed using high-resolution transmission electron microscopy and synchrotron powder X-ray diffractometry. Disordered and 1:2 ordered domains both coexisted in a single grain. Each domain occupied its own region, and the interfaces were atomically sharp and coherent. The wavelength of the superlattice modulation in the 1:2 ordered domain was ∼0.71 nm. The transition from the 1:2 ordered region to the disordered one could be differentiated at the interface by using the superlattice modulations in the 1:2 ordered domain. From these observations, a deducible interfacial model also was presented.

Original language	English
Pages (from-to)	3337-3340
Number of pages	4
Journal	Journal of the American Ceramic Society
Volume	81
Issue number	12
DOIs	https://doi.org/10.1111/j.1151-2916.1998.tb02779.x
Publication status	Published - 1998 Dec

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1998.tb02779.x

Cite this

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title = "Interfacial structure of disordered-ordered domain boundaries in lanthanum-doped barium magnesium niobate",

abstract = "Microstructural studies on the interfacial boundaries of disordered and 1:2 ordered domains in lanthanum-doped (Ba0.975La0.025)(Mg0.34Nb0.66)O 3 were performed using high-resolution transmission electron microscopy and synchrotron powder X-ray diffractometry. Disordered and 1:2 ordered domains both coexisted in a single grain. Each domain occupied its own region, and the interfaces were atomically sharp and coherent. The wavelength of the superlattice modulation in the 1:2 ordered domain was ∼0.71 nm. The transition from the 1:2 ordered region to the disordered one could be differentiated at the interface by using the superlattice modulations in the 1:2 ordered domain. From these observations, a deducible interfacial model also was presented.",

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T1 - Interfacial structure of disordered-ordered domain boundaries in lanthanum-doped barium magnesium niobate

AU - Lee, Hwack Joo

AU - Park, Hyun Min

AU - Ryu, Hyun

AU - Paik, Jong Hoo

AU - Nahm, Sahn

AU - Byun, Jae Dong

PY - 1998/12

Y1 - 1998/12

N2 - Microstructural studies on the interfacial boundaries of disordered and 1:2 ordered domains in lanthanum-doped (Ba0.975La0.025)(Mg0.34Nb0.66)O 3 were performed using high-resolution transmission electron microscopy and synchrotron powder X-ray diffractometry. Disordered and 1:2 ordered domains both coexisted in a single grain. Each domain occupied its own region, and the interfaces were atomically sharp and coherent. The wavelength of the superlattice modulation in the 1:2 ordered domain was ∼0.71 nm. The transition from the 1:2 ordered region to the disordered one could be differentiated at the interface by using the superlattice modulations in the 1:2 ordered domain. From these observations, a deducible interfacial model also was presented.

AB - Microstructural studies on the interfacial boundaries of disordered and 1:2 ordered domains in lanthanum-doped (Ba0.975La0.025)(Mg0.34Nb0.66)O 3 were performed using high-resolution transmission electron microscopy and synchrotron powder X-ray diffractometry. Disordered and 1:2 ordered domains both coexisted in a single grain. Each domain occupied its own region, and the interfaces were atomically sharp and coherent. The wavelength of the superlattice modulation in the 1:2 ordered domain was ∼0.71 nm. The transition from the 1:2 ordered region to the disordered one could be differentiated at the interface by using the superlattice modulations in the 1:2 ordered domain. From these observations, a deducible interfacial model also was presented.

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Interfacial structure of disordered-ordered domain boundaries in lanthanum-doped barium magnesium niobate

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