Ferroelectric domains and twinning in high-quality SrBi2Ta2O9 single crystals
authors Amorin, H; Shvartsman, VV; Bdikin, IK; Costa, MEV; Kholkin, AL; Pertsev, NA
nationality International
journal APPLIED PHYSICS LETTERS
keywords TRANSMISSION ELECTRON-MICROSCOPY; SCANNING FORCE MICROSCOPY; THIN-FILMS; CERAMICS; BEHAVIOR
abstract The domain structure of high-quality SrBi2Ta2O9 (SBT) single crystals is investigated by x-ray diffraction and piezoelectric force microscopy. Both ferroelectric 180 degrees domains and ferroelastic 90 degrees domains (twins) are revealed at room temperature. Remarkably, coexisting domains of two types form a well-defined "herringbone" structure with mostly flat 90 degrees walls. Formation of the observed complex domain pattern is attributed to a two-stage process associated with the presence of separate ferroelastic and ferroelectric phase transitions in SBT. (c) 2006 American Institute of Physics.
publisher AMER INST PHYSICS
issn 0003-6951
year published 2006
volume 88
issue 6
digital object identifier (doi) 10.1063/1.2162704
web of science category Physics, Applied
subject category Physics
unique article identifier WOS:000235252800078
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