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Achieving single domain in rhombohedral and tetragonal Mn‐doped Pb(In 1/2 Nb 1/2 )‐Pb(Mg 1/3 Nb 2/3 )‐PbTiO 3 crystals for infrared detecting applications
Author(s) -
Zhu Rongfeng,
Zhao Jing,
Liu Fei,
Zhang Zhang,
Fang Bijun,
Chen Jianwei,
Xu Haiqing,
Wang Xi’an,
Luo Haosu
Publication year - 2020
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.16944
Subject(s) - tetragonal crystal system , pyroelectricity , poling , materials science , phase boundary , curie temperature , ferroelectricity , crystal structure , crystal (programming language) , phase (matter) , crystallography , doping , analytical chemistry (journal) , condensed matter physics , ferromagnetism , chemistry , dielectric , optoelectronics , physics , organic chemistry , chromatography , computer science , programming language
The [111]‐oriented rhombohedral Mn‐doped 0.15Pb(In 1/2 Nb 1/2 )‐0.55Pb(Mg 1/3 Nb 2/3 )O 3 ‐0.30PbTiO 3 (Mn:PIMNT(15/55/30)) crystal and the [001]‐oriented tetragonal Mn‐doped 0.29Pb(In 1/2 Nb 1/2 )‐0.29Pb(Mg 1/3 Nb 2/3 )O 3 ‐0.42PbTiO 3 (Mn:PIMNT(29/29/42)) crystal were poled under different conditions. The pyroelectric performance of the two crystals as a function of poling temperature, as well as the relationship with ferroelectric domain configuration and phase structure was investigated systematically. The pyroelectric properties of the two crystals enhance with rising the poling temperature, which can be attributed to the improvement of the single state. And for the rhombohedral Mn:PIMNT(15/55/30) crystal locating near morphotropic phase boundary (MPB), the increase of tetragonal phase induces the deterioration of pyroelectric properties. Due to more residual tetragonal phase, the pyroelectric coefficient of the Mn:PIMNT(15/55/30) crystal poled at 150°C is lower than that poled at 100°C. In general, both the crystals poled above T C achieve nearly single state, exhibiting the best pyroelectric properties with relatively high Curie temperature ( T C ), where P = 9.71 × 10 −4 C m −2 K −1 , F i = 3.88 × 10 −10 m V −1 , F v = 0.068 m 2 C −1 and F d = 29.7 × 10 −5 Pa −1/2 for the rhombohedral Mn:PIMNT(15/55/30) crystal ( T C = 171°C) and P = 6.78 × 10 −4 C m −2 K −1 , F i = 2.71 ×10 −10 mV −1 , F v = 0.1 m 2 C −1 , F d = 23.54 × 10 −5 Pa −1/2 for the tetragonal Mn:PIMNT(29/29/42) single crystal ( T C = 251°C), meeting the stable operation of infrared detector at relatively high environmental temperatures.