A combinatory ferroelectric compound bridging simple ABO3 and A-site-ordered quadruple perovskite

Jianfa Zhao, Jiacheng Gao, Wenmin Li, Yuting Qian, Xudong Shen, Xiao Wang, Xi Shen, Zhiwei Hu, Cheng Dong, Qingzhen Huang, Lipeng Cao, Zhi Li, Jun Zhang, Chongwen Ren, Lei Duan, Qingqing Liu, Richeng Yu, Yang Ren, Shih-Chang Weng, Hong-Ji Lin, Chien-Te Chen, Liu-Hao Tjeng, Youwen Long, Zheng Deng, Jinlong Zhu, Xiancheng Wang, Hongming Weng (), Runze Yu (), Martha Greenblatt and Changqing Jin ()
Additional contact information
Jianfa Zhao: University of Chinese Academy of Sciences
Jiacheng Gao: University of Chinese Academy of Sciences
Wenmin Li: University of Chinese Academy of Sciences
Yuting Qian: University of Chinese Academy of Sciences
Xudong Shen: University of Chinese Academy of Sciences
Xiao Wang: Max Planck Institute for Chemical Physics of Solids
Xi Shen: University of Chinese Academy of Sciences
Zhiwei Hu: Max Planck Institute for Chemical Physics of Solids
Cheng Dong: School of Advanced Materials, Peking University Shenzhen Graduate School
Qingzhen Huang: NIST Center for Neutron Research, National Institute of Standards and Technology
Lipeng Cao: University of Chinese Academy of Sciences
Zhi Li: Nanjing University of Science and Technology
Jun Zhang: University of Chinese Academy of Sciences
Chongwen Ren: University of Chinese Academy of Sciences
Lei Duan: University of Chinese Academy of Sciences
Qingqing Liu: University of Chinese Academy of Sciences
Richeng Yu: University of Chinese Academy of Sciences
Yang Ren: X-ray Science Division, Advanced Photon Source, Argonne National Laboratory
Shih-Chang Weng: National Synchrotron Radiation Research Center
Hong-Ji Lin: National Synchrotron Radiation Research Center
Chien-Te Chen: National Synchrotron Radiation Research Center
Liu-Hao Tjeng: Max Planck Institute for Chemical Physics of Solids
Youwen Long: University of Chinese Academy of Sciences
Zheng Deng: University of Chinese Academy of Sciences
Jinlong Zhu: Southern University of Science and Technology
Xiancheng Wang: University of Chinese Academy of Sciences
Hongming Weng: University of Chinese Academy of Sciences
Runze Yu: University of Chinese Academy of Sciences
Martha Greenblatt: The State University of New Jersey
Changqing Jin: University of Chinese Academy of Sciences

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract The simple ABO3 and A-site-ordered AA′3B4O12 perovskites represent two types of classical perovskite functional materials. There are well-known simple perovskites with ferroelectric properties, while there is still no report of ferroelectricity due to symmetry breaking transition in A-site-ordered quadruple perovskites. Here we report the high pressure synthesis of an A-site-ordered perovskite PbHg3Ti4O12, the only known quadruple perovskite that transforms from high-temperature centrosymmetric paraelectric phase to low-temperature non-centrosymmetric ferroelectric phase. The coordination chemistry of Hg2+ is changed from square planar as in typical A-site-ordered quadruple perovskite to a rare stereo type with 8 ligands in PbHg3Ti4O12. Thus PbHg3Ti4O12 appears to be a combinatory link from simple ABO3 perovskites to A-site-ordered AA′3Ti4O12 perovskites, sharing both displacive ferroelectricity with former and structure coordination with latter. This is the only example so far showing ferroelectricity due to symmetry breaking phase transition in AA′3B4O12-type A-site-ordered perovskites, and opens a direction to search for ferroelectric materials.

Date: 2021
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DOI: 10.1038/s41467-020-20833-6

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