Premium
Interfacial Structure of Ordered Domains in Barium Lanthanum Magnesium Niobate
Author(s) -
Lee Hwack Joo,
Ryu Hyun,
Park Hyun Min,
Paik Jong Hoo,
Nahm Sahn,
Byun JaeDong
Publication year - 1998
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1998.tb02534.x
Subject(s) - materials science , transmission electron microscopy , superlattice , lanthanum , crystallography , barium , wavelength , magnesium , condensed matter physics , domain (mathematical analysis) , chemistry , nanotechnology , inorganic chemistry , optoelectronics , physics , metallurgy , mathematical analysis , mathematics
Microstructural studies on the interfacial boundaries of 1:1 and 1:2 ordered domains in (Ba 0.9 La 0.1 )(Mg 0.37 Nb 0.63 )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.