Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 122, Issue 2-3, Pages 350-353Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2010.02.079
Keywords
PIN-PMN-PT single crystals; Polarized light microscopy; Phase transition; Piezoelectric response
Categories
Funding
- Ministry of Science and Technology of China [2008AA032410, 2006AA03Z107, 2009CB623305]
- Natural Science Foundation of China [60837003, 50777065, 50602047]
- Shanghai Municipal Government [08JC1420500]
- Shanghai Institute of Ceramics of Chinese Academy of Sciences [SCX0608]
- Fund of National Engineering Research Center for Optoelectronic Crystalline Materials [2005DC105003, 2007K05]
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The method to distinguish two types of monoclinic phases (M-A and M-B) in perovskite crystals by polarized light microscopy was developed. The MA-type monoclinic phase was observed in xPb(In1/2Nb1/2)O-3-yPb(Mg1/3Nb2/3)O-3-zPbTiO(3) ternary crystal by polarized light microscopy at room temperature. The phase transition of these monoclinic phases under dc electric field along [1 1 0](cub) direction was investigated in real time. Two dielectric peaks were found in ferroelectric phases of the as-grown ternary single crystals near the morphotropic phase boundary (MPB) with increasing temperature, which indicate the phase transition of monoclinic M-A -> orthorhombic (O) -> tetragonal (T). (C) 2010 Elsevier B.V. All rights reserved.
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