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Heterogeneous domain configurations in ferroelectric crystals during thermal depolarization
Author(s) -
Wang Yaojin,
Ma He,
Yuan Guoliang,
Luo Haosu,
Viehland Dwight
Publication year - 2017
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/jace.14746
Subject(s) - tetragonal crystal system , ferroelectricity , monoclinic crystal system , materials science , condensed matter physics , poling , phase transition , crystallography , phase (matter) , ternary operation , crystal structure , dielectric , chemistry , physics , optoelectronics , organic chemistry , computer science , programming language
The phase transition and domain configurations in emerging ternary Mn‐doped Pb(In 1/2 Nb 1/2 )O 3 –Pb(Mg 1/3 Nb 2/3 )O 3 –PbTiO 3 ferroelectric crystals have been investigated by high‐resolution X‐ray diffraction. Phase transition sequences of cubic→rhombohedral and monoclinic A →tetragonal→cubic were determined under zero‐field‐cooling and zero‐field‐heating after poling, respectively. Most importantly, a monoclinic‐like heterogeneous domain configuration was observed in the conventional high‐symmetry tetragonal phase field due to the coexistence of multiscale tetragonal variants. Our results provide further evidence that superlattices with low‐symmetry can be assisted by tetragonal nano‐twins.