Modeling the dielectric response in relaxor ferroelectrics

2001 ◽  
Vol 8 (3) ◽  
pp. 472-476 ◽  
Author(s):  
B. Kuchta ◽  
J.-M. Debierre
Keyword(s):  
Dielectric Response ◽  
Relaxor Ferroelectrics

Phase Evolution and Dielectric Characterization of Lead Nickel Niobate–lead Zirconate Ceramics Prepared from the Hydrothermally Derived Precursors

1999 ◽  
Vol 14 (4) ◽  
pp. 1364-1370 ◽  
Author(s):  
Chung-Hsin Lu ◽  
Wen-Jeng Hwang
Keyword(s):  
Dielectric Response ◽  
Pyrochlore Phase ◽  
Phase Evolution ◽  
Intermediate Compound ◽  
Lead Zirconate ◽  
Relaxor Ferroelectrics ◽  
Dielectric Characterization ◽  
Lead Nickel ◽  
Rich Side

The perovskite compounds with the composition of (1 – x) Pb(Ni1/3Nb2/3)O3 –xPbZrO3 have been successfully prepared from hydrothermally treated precursors. During calcination, the primary intermediate compound is pyrochlore phase in the Pb(Ni1/3Nb2/3)O3-rich composition, while it is PbZrO3 on the PbZrO3-rich side. On calcination at 800 °C, all precursors convert into perovskite phases. In the formed solid solutions, increasing PbZrO3 content results in a rise in the apparent Curie temperature as well as the maximum dielectric permittivity. The Pb(Ni1/3Nb2/3)O3-rich perovskites (x < 0.8) possess the characteristics of relaxor ferroelectrics. With increasing PbZrO3 content, the dielectric response gradually becomes less diffuse and dispersive, reflecting a reduction in the relaxor characteristics of the formed perovskites.

Microwave and infrared dielectric response in BaTiO3 based relaxor ferroelectrics

2011 ◽  
Vol 208 (12) ◽  
pp. 2853-2860 ◽  
Author(s):  
Jingji Zhang ◽  
Jiwei Zhai ◽  
Yewen Zhang
Keyword(s):  
Dielectric Response ◽  
Relaxor Ferroelectrics

Crossover from Glassy to Inhomogeneous-Ferroelectric Nonlinear Dielectric Response in Relaxor Ferroelectrics

2000 ◽  
Vol 84 (25) ◽  
pp. 5892-5895 ◽  
Author(s):  
Vid Bobnar ◽  
Zdravko Kutnjak ◽  
Ras̆a Pirc ◽  
Robert Blinc ◽  
Adrijan Levstik
Keyword(s):  
Dielectric Response ◽  
Relaxor Ferroelectrics ◽  
Nonlinear Dielectric

Dielectric response of lanthanum-modified Pb(Fe1/2Ta1/2)O3 relaxor ferroelectrics

2003 ◽  
Vol 82 (2) ◽  
pp. 263-267 ◽  
Author(s):  
W.Z. Zhu ◽  
M. Yan ◽  
A.L. Kholkin ◽  
P.Q. Mantas ◽  
J.L. Baptista
Keyword(s):  
Dielectric Response ◽  
Relaxor Ferroelectrics

Broad-band dielectric response of PbMg1/3Nb2/3O3 relaxor ferroelectrics: Single crystals, ceramics and thin films

2006 ◽  
Vol 26 (14) ◽  
pp. 2867-2875 ◽  
Author(s):  
V. Bovtun ◽  
S. Veljko ◽  
S. Kamba ◽  
J. Petzelt ◽  
S. Vakhrushev ◽  
...  
Keyword(s):  
Thin Films ◽  
Single Crystals ◽  
Dielectric Response ◽  
Broad Band ◽  
Relaxor Ferroelectrics

scholarly journals Infrared and THz spectroscopy of nanostructured dielectrics

2009 ◽  
Vol 3 (3) ◽  
pp. 145-155 ◽  
Author(s):  
Jan Petzelt
Keyword(s):  
Dielectric Response ◽  
Relaxor Ferroelectrics ◽  
Thz Spectroscopy ◽  
Core Shell ◽  
Epitaxial Thin Films ◽  
High Permittivity ◽  
Matrix Type ◽  
Dielectric Substrates ◽  
Effective Medium Approach ◽  
Low Permittivity

Results achieved using the infrared/THz spectroscopy of various inhomogeneous dielectrics in the Department of Dielectrics, Institute of Physics, Prague, during the last decade are briefly reviewed. The discussion concerns high-permittivity ceramics with inevitable low-permittivity dead layers along the grain boundaries, relaxor ferroelectrics with highly anisotropic polar nano-regions, classical matrix-type composites, core-shell composites, filled nanoporous glasses, polycrystalline and epitaxial thin films, heterostructures and superlattices on dielectric substrates. The analysis using models based on the effective medium approach is discussed. The importance of depolarizing field and of the percolation of components on the effective ac dielectric response and the excitations contributing to it are emphasized. .

Nonlinear dielectric response of relaxor ferroelectrics

1998 ◽  
Vol 217 (1) ◽  
pp. 253-261
Author(s):  
M. D. Glinchuk ◽  
V. A. Stephanovich
Keyword(s):  
Dielectric Response ◽  
Relaxor Ferroelectrics ◽  
Nonlinear Dielectric

Nonlinear Dielectric Response in Relaxor Ferroelectrics (1-x)Pb(Mg1/2W1/2)O3–xPbTiO3(x=0.5)

1998 ◽  
Vol 37 (Part 1, No. 9B) ◽  
pp. 5413-5417 ◽  
Author(s):  
Makoto Iwata ◽  
Ryuichi Kamei ◽  
Hiroshi Orihara ◽  
Yoshihiro Ishibashi ◽  
Hidehiro Ohwa ◽  
...  
Keyword(s):  
Dielectric Response ◽  
Relaxor Ferroelectrics ◽  
Nonlinear Dielectric
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