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Title: Softening of antiferroelectricity in PbZrO{sub 3}-Pb(Mn{sub 1/2}W{sub 1/2})O{sub 3} complex perovskite solid solution

Abstract

A new solid solution of complex perovksite structure, (1-x)PbZrO{sub 3}-xPb(Mn{sub 1/2}W{sub 1/2})O{sub 3} (PZ-xPMnW, with x = 0–0.1), is prepared by solid state reaction method. Its crystal structure, dielectric properties, and antiferroelectricity are investigated. It is found that the crystal structure of the solid solution remains in the orthorhombic Pbam symmetry with x ≤ 0.1. The induced ferroelectric polarization (P{sub Ind}) is enhanced, whereas the critical field (E{sub Cr}) is decreased, with increasing PMnW concentration, indicating the softening of antiferroelectricity in PZ. The Curie temperature (T{sub C}) is also decreased with the substitution of PMnW for PZ. The grain size is significantly enlarged, which could be attributed to the presence of a transient liquid phase during the sintering process. Measurements of the magnetization by means of SQUID confirm that the Mn ion exists in a high spin state with a 2+ oxidation state. The softening of antiferroelectric order and the improvement in induced polarization make the PZ-PMnW ceramics an interesting material system for such applications as energy storage devices.

Authors:
; ;  [1];  [1];  [2];
  1. Department of Chemistry and 4D LABS, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada)
  2. (China)
Publication Date:
OSTI Identifier:
22308733
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPLEXES; CRITICAL FIELD; CURIE POINT; DIELECTRIC PROPERTIES; ENERGY STORAGE; FERROELECTRIC MATERIALS; HIGH SPIN STATES; LEAD COMPOUNDS; MAGNETIZATION; MANGANATES; ORTHORHOMBIC LATTICES; PEROVSKITE; POLARIZATION; SOLID SOLUTIONS; SOLIDS; SQUID DEVICES; SYMMETRY; TUNGSTATES; ZIRCONATES

Citation Formats

Ren, Zihe, Zhang, Nan, Su, Lun-Wei, Wu, Hua, Department of Applied Physics, Donghua University, Ren Min Road 2999, Songjiang District, 201620 Shanghai, R. R. China, and Ye, Zuo-Guang, E-mail: zye@sfu.ca. Softening of antiferroelectricity in PbZrO{sub 3}-Pb(Mn{sub 1/2}W{sub 1/2})O{sub 3} complex perovskite solid solution. United States: N. p., 2014. Web. doi:10.1063/1.4885935.
Ren, Zihe, Zhang, Nan, Su, Lun-Wei, Wu, Hua, Department of Applied Physics, Donghua University, Ren Min Road 2999, Songjiang District, 201620 Shanghai, R. R. China, & Ye, Zuo-Guang, E-mail: zye@sfu.ca. Softening of antiferroelectricity in PbZrO{sub 3}-Pb(Mn{sub 1/2}W{sub 1/2})O{sub 3} complex perovskite solid solution. United States. doi:10.1063/1.4885935.
Ren, Zihe, Zhang, Nan, Su, Lun-Wei, Wu, Hua, Department of Applied Physics, Donghua University, Ren Min Road 2999, Songjiang District, 201620 Shanghai, R. R. China, and Ye, Zuo-Guang, E-mail: zye@sfu.ca. Mon . "Softening of antiferroelectricity in PbZrO{sub 3}-Pb(Mn{sub 1/2}W{sub 1/2})O{sub 3} complex perovskite solid solution". United States. doi:10.1063/1.4885935.
@article{osti_22308733,
title = {Softening of antiferroelectricity in PbZrO{sub 3}-Pb(Mn{sub 1/2}W{sub 1/2})O{sub 3} complex perovskite solid solution},
author = {Ren, Zihe and Zhang, Nan and Su, Lun-Wei and Wu, Hua and Department of Applied Physics, Donghua University, Ren Min Road 2999, Songjiang District, 201620 Shanghai, R. R. China and Ye, Zuo-Guang, E-mail: zye@sfu.ca},
abstractNote = {A new solid solution of complex perovksite structure, (1-x)PbZrO{sub 3}-xPb(Mn{sub 1/2}W{sub 1/2})O{sub 3} (PZ-xPMnW, with x = 0–0.1), is prepared by solid state reaction method. Its crystal structure, dielectric properties, and antiferroelectricity are investigated. It is found that the crystal structure of the solid solution remains in the orthorhombic Pbam symmetry with x ≤ 0.1. The induced ferroelectric polarization (P{sub Ind}) is enhanced, whereas the critical field (E{sub Cr}) is decreased, with increasing PMnW concentration, indicating the softening of antiferroelectricity in PZ. The Curie temperature (T{sub C}) is also decreased with the substitution of PMnW for PZ. The grain size is significantly enlarged, which could be attributed to the presence of a transient liquid phase during the sintering process. Measurements of the magnetization by means of SQUID confirm that the Mn ion exists in a high spin state with a 2+ oxidation state. The softening of antiferroelectric order and the improvement in induced polarization make the PZ-PMnW ceramics an interesting material system for such applications as energy storage devices.},
doi = {10.1063/1.4885935},
journal = {Journal of Applied Physics},
number = 2,
volume = 116,
place = {United States},
year = {Mon Jul 14 00:00:00 EDT 2014},
month = {Mon Jul 14 00:00:00 EDT 2014}
}
  • The solid solution between the normal ferroelectric Pb(Zr{sub 1/2}Ti{sub 1/2})O{sub 3} (PZT) and relaxor ferroelectric Pb(Ni{sub 1/3}Nb{sub 2/3})O{sub 3} (PNN) was synthesized by the columbite method. The phase structure and dielectric properties of xPZT-(1-x)PNN where x=0.4-0.9 and the Zr/Ti composition was fixed close to the morphotropic phase boundary (MPB) were investigated. With these data, the ferroelectric phase diagram between PZT and PNN has been established. The relaxor ferroelectric nature of PNN gradually transformed towards a normal ferroelectric state towards the composition 0.7PZT-0.3PNN, in which the permittivity was characterized by a sharp peak and the disappearance of dispersive behavior. X-ray diffractionmore » analysis demonstrated the coexistence of both the rhombohedral and tetragonal phases at the composition 0.8PZT-0.2PNN, a new morphotropic phase boundary within this system. Examination of the dielectric spectra indicates that PZT-PNN exhibits an extremely high relative permittivity near the MPB composition. The permittivity shows a shoulder at the rhombohedral to tetragonal phase transition temperature T{sub RT}=195 deg. C, and then a maximum permittivity (36 000 at 10 kHz) at the transition temperature T{sub max}=277 deg. C at the MPB composition. The maximum transition temperature of this system was 326 deg. C at the composition x=0.9 with the relative permittivity of 32 000 at 10 kHz.« less
  • A method was developed for the determination of a region of compositional fluctuation in the perovskite ternary solid-solution system PbZrO/sub 3/-PbTiO/sub 3/-Pb(Mg/sub 1/3/Ta/sub 2/3/)O/sub 3/. The compositional fluctuation in the ternary system extends two-dimensionally on the phase diagram. The method described in this paper utilized the fact that the compositional fluctuation region abuts on the curves of composition whose lattice spacing is the lower or higher fluctuation limit. The fluctuation limits of the lattice spacing were estimated from X-ray diffraction analysis.
  • An antiferroelectric-paraelectric diffuse phase transition in pseudobinary (1-x)Pb(Fe/sub 1/2/Nb/sub 1/2/)O/sub 3/-xPb(Mg/sub 1/2/W/sub 1/2/)O/sub 3/ solid solution for 0.60< or =x< or =1.00 is investigated by its dielectric property and calorimetric measurements. The dielectric constant shows a diffuse phase transition behavior for 0.60 < or =x< or =0.88, but shows a sharp phase transition behavior for 0.90< or =x< or =1.00. The apparent dielectric transition temperature increases with increasing external frequency for 0.60< or =x< or =0.88, but remains constant with respect to the change in external frequency for 0.90< or =x< or =1.00. Dielectric curves as a function of temperaturemore » show broadened peaks for 0.60< or =x< or =0.88, but show relatively sharp peaks for 0.90< or =x< or =1.00. The transition enthalpy change also increases with increasing x. The diffuse phase transition for 0.60< or =x< or =0.88 is accompanied by a small enthalpy change. The small enthalpy difference between the antiferroelectric and paraelectric phases seems to lower the barrier between the two phases, and in the process, the diffuse phase transition seems to be induced.« less
  • Ferroelectric single crystals of a new lead-reduced Bi(Zn{sub 1/2}Ti{sub 1/2})O{sub 3}-PbZrO{sub 3}-PbTiO{sub 3} (BZT-PZ-PT) ternary solid solution system have been grown for the first time by three different methods, namely high temperature solution growth (HTSG, or flux method), top-cooled solution growth (TCSG), and top-seeded solution growth (TSSG). The chemical and thermodynamic parameters, including the flux concentration, the soaking temperature and the cooling rate, have been optimized, leading to the growth of good quality BZT-PZ-PT crystals of pseudo-cubic morphology. A large size crystal of the dimensions of 2 × 2 × 0.5 cm{sup 3} has been obtained by the TSSG technique. The crystal structure ismore » analyzed by means of X-ray powder diffraction. The highest ferroelectric Curie temperature T{sub C} of the grown crystals is found to be 320 °C by means of dielectric measurements. A remnant polarization of 32 μC/cm{sup 2} is displayed with a coercive field of 15.4 kV/cm. The high T{sub C} and large coercive field of the BZT-PZ-PT single crystal make this material a promising candidate for applications in high power electromechanical transducers that can operate in a wider temperature range and at high fields.« less