Open AccessDielectric behavior and phase transition in [111]-oriented PIN–PMN–PT single crystals under dc bias
Author(s) -
Yuhui Wan,
Zhenrong Li,
Ming Ma,
Fēi Li,
Chao Wang,
Fan Song,
Xi Yao
Publication year - 2014
Publication title -
journal of advanced dielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 13
eISSN - 2010-135X
pISSN - 2010-1368
DOI - 10.1142/s2010135x14500040
Subject(s) - materials science , dielectric , phase transition , dc bias , ferroelectricity , single crystal , transition temperature , condensed matter physics , phase (matter) , electric field , atmospheric temperature range , biasing , crystallography , optoelectronics , thermodynamics , electrical engineering , chemistry , physics , voltage , superconductivity , engineering , organic chemistry , quantum mechanics
Temperature and electric field dependences of the dielectric behavior and phase transition for [111]-oriented 0.23PIN–0.52PMN–0.25PT (PIN-PMN–0.25PT) and 0.24PIN–0.43PMN–0.33PT (PIN–PMN–0.33PT) single crystals were investigated over a temperature range from -100°C to 250°C using field-heating (FH) dielectric measurements. The transition phenomenon from ferroelectric microdomain to macrodomain was found in rhombohedra (R) phase region in the single crystals under dc bias. This transition temperature T f of micro-to-macrodomain is sensitive to dc bias and move quickly to lower temperature with increasing dc bias. The phase transition temperatures in the two single crystals shift toward high temperature and the dielectric permittivities at the phase transition temperature decrease with increasing dc bias. Especially, the phase transition peaks are gradually broad in PIN–PMN–0.33PT single crystal with the increasing dc bias. Effects of dc bias on the dielectric behavior and phase transition in PIN–PMN–PT single crystals are discussed.