TY - JOUR
T1 - Giant Polarization and High Temperature Monoclinic Phase in a Lead-Free Perovskite of Bi(Zn0.5Ti0.5)O3-BiFeO3
AU - Pan, Zhao
AU - Chen, Jun
AU - Yu, Runze
AU - Yamamoto, Hajime
AU - Rong, Yangchun
AU - Hu, Lei
AU - Li, Qiang
AU - Lin, Kun
AU - You, Li
AU - Zhao, Kun
AU - Fan, Longlong
AU - Ren, Yang
AU - Kato, Kenichi
AU - Azuma, Masaki
AU - Xing, Xianran
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (Grants 21322102, 21590793, 91422301, and 21231001), National Program for Support of Top-notch Young Professionals, the Program for Chang Jiang Young Scholars, and the Fundamental Research Funds for the Central Universities, China (Grant FRF-TP-14-012C1). This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility, operated for the DOE Office of Science by Argonne National Laboratory under Contract DE-AC02-06CH11357. The hightemperature synchrotron radiation experiments were performed at the BL44B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (Proposals 2015B1127 and 2016A1060).
Publisher Copyright:
© 2016 American Chemical Society.
PY - 2016/10/3
Y1 - 2016/10/3
N2 - Lead-free piezoelectrics have attracted increasing attention because of the awareness of lead toxicity to the environment. Here, a new bismuth-based lead-free perovskite, (1 - x)Bi(Zn0.5Ti0.5)O3-xBiFeO3, has been synthesized via a high-pressure and high-temperature method. It exhibits interesting properties of giant polarization, morphotropic phase boundary (MPB), and monoclinic phase. In particular, large tetragonality (c/a = 1.228) and giant spontaneous polarization of 110 μC/cm2 has been obtained in 0.6 Bi(Zn0.5Ti0.5)O3-0.4BiFeO3, which is much higher than most available lead-free materials and conventional Pb(Zr,Ti)O3. MPB is clearly identified to be constituted of tetragonal and monoclinic phases at x = 0.5. Notably, a single monoclinic phase has been observed at x = 0.6, which exhibits an intriguing high-temperature property. The present results are helpful to explore new lead-free MPB systems in bismuth-based compounds.
AB - Lead-free piezoelectrics have attracted increasing attention because of the awareness of lead toxicity to the environment. Here, a new bismuth-based lead-free perovskite, (1 - x)Bi(Zn0.5Ti0.5)O3-xBiFeO3, has been synthesized via a high-pressure and high-temperature method. It exhibits interesting properties of giant polarization, morphotropic phase boundary (MPB), and monoclinic phase. In particular, large tetragonality (c/a = 1.228) and giant spontaneous polarization of 110 μC/cm2 has been obtained in 0.6 Bi(Zn0.5Ti0.5)O3-0.4BiFeO3, which is much higher than most available lead-free materials and conventional Pb(Zr,Ti)O3. MPB is clearly identified to be constituted of tetragonal and monoclinic phases at x = 0.5. Notably, a single monoclinic phase has been observed at x = 0.6, which exhibits an intriguing high-temperature property. The present results are helpful to explore new lead-free MPB systems in bismuth-based compounds.
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U2 - 10.1021/acs.inorgchem.6b01661
DO - 10.1021/acs.inorgchem.6b01661
M3 - Article
AN - SCOPUS:84992415373
SN - 0020-1669
VL - 55
SP - 9513
EP - 9516
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 19
ER -