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Temperature dependence of intrinsic and extrinsic dielectric contributions in 0.27Pb(In 1/2 Nb 1/2 )O 3 –0.46Pb(Mg 1/3 Nb 2/3 )O 3 –0.27PbTiO 3 single crystals
Author(s) -
Yang Liya,
Zheng Limei,
Jing Yujia,
Li Shiyang,
Lu Xiaoyan,
Lü Weiming,
Zhang Rui
Publication year - 2017
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201700029
Subject(s) - dielectric , condensed matter physics , phase transition , tetragonal crystal system , materials science , trigonal crystal system , phase (matter) , thermodynamics , crystallography , crystal structure , chemistry , physics , optoelectronics , organic chemistry
The temperature dependence of extrinsic and intrinsic dielectric contributions was quantitatively evaluated by Rayleigh analysis in [001] C ‐oriented rhombohedral 0.27Pb(In 1/2 Nb 1/2 )O 3 –0.46Pb(Mg 1/3 Nb 2/3 )O 3 –0.27PbTiO 3 (PIN–PMN–0.27PT) single crystal. It is shown that both contributions increase with temperature and reach maximum values at around the rhombohedral–tetragonal phase‐transition temperature T R–T . However, the enhancement of the extrinsic part is more significant than the intrinsic one. The percentage of extrinsic contribution regarding the total dielectric response increases from 1% at room temperature to 34% at around T R–T . In addition, the influence of the polymorphic phase transition on intrinsic and extrinsic contributions is discussed. This work enables us to further understand the thermal stability of electrical properties and the influence of polymorphic phase transition in ferroelectrics.