Journal ArticleDOI
Evolution of polar order in (1 − x)Pb(In1/2Nb1/2)O3-xPbTiO3 (0 ≤ x ≤ 1) system as investigated by dielectric and Raman spectroscopy
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In this paper, the authors investigated the (1 −−− x)Pb(In 1/2Nb1/2)O3 − − εxPbTiO3 (PIN-PT) solid solution by Raman scattering and temperature variation of dielectric measurement.Abstract:
We have investigated the (1 − x)Pb(In1/2Nb1/2)O3 − xPbTiO3 (PIN-PT) solid solution by Raman scattering and temperature variation of dielectric measurement. The dielectric analysis indicates that the Burn's temperature (TB) raises upto x = 0.30 and then decreases due to the enhancement in the long range ferroelectric order. At x = 0.60, TB coincides with the temperature at which dielectric constant is maximum, Tm, (TB ∼ Tm). It suggests that the polar nanoregions (PNRs) are not present in 0.40PIN-0.60PT. The investigation confirms that PT addition in PIN transforms the PNRs into the macroscopic ferroelectric domains. The composition dependent Raman spectra are used to interpret the evolution of polar order. Qualitative Raman analysis reveals that the changes in the vibration bands are associated with the structural transition from R3m to P4mm at morphotrophic phase region. For the values of x > 0.41, the line-width of all the bands decreases as the concentration of PT increases. The observed two mode behav...read more
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Journal Article
Phase diagram of high T-c Pb(In1/2Nb1/2)O-3-PbTiO3 ceramics
TL;DR: In this paper, the morphotropic phase boundary zone was found to be between a rhombohedral phase region for low PT contents and a tetragonal phase region with high PT contents, i.e. in the 0.34-0.39x range.
Journal ArticleDOI
Nanoscale insight into the domain structures of high Curie point Pb(In1/2Nb1/2)O3-PbTiO3 single crystal
TL;DR: In this paper, the PINTx single crystal exhibited strip-like long-range-order ferroelectric domain structures at room temperature with x across the morphotropic phase boundary ranging from 0.28 to 0.42.
References
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Journal ArticleDOI
Recent progress in relaxor ferroelectrics with perovskite structure
Alexei A. Bokov,Zuo-Guang Ye +1 more
TL;DR: In this article, the lattice dynamics and the peculiar dielectric relaxation in relaxors are discussed, and theoretical models for the mechanisms of PNR formation and freezing into nonergodic glassy state are also presented.
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Fabrication of perovskite lead magnesium niobate
S. L. Swartz,Thomas R. Shrout +1 more
TL;DR: The perovskite relaxor ferroelectric lead magnesium niobate (PbMg 1 3 Nb 2 3 O 3 ) is an important material because of its high dielectric constant and correspondingly large electrostrictive strains as mentioned in this paper.
Journal ArticleDOI
Critical exponents of the dielectric constants in diffused-phase-transition crystals
Kenji Uchino,Shoichiro Nomura +1 more
TL;DR: In this paper, the critical exponent γ in the relation between the dielectric constant and temperature (1/e − 1/em = C'-1x (T −Tm)γ) has been determined precisely for relaxor ferroelectrlics Pb(Mg1/3Nb2/3)O3, and a related solid solution 0.88Pb (Zn 1/3 Nb 2/3)-O3-0. I2PbT103.
Journal ArticleDOI
Characteristics of relaxor-based piezoelectric single crystals for ultrasonic transducers
Seung-Eek Park,Thomas R. Shrout +1 more
TL;DR: In this article, relaxor-based materials with the general formula, Pb(B/sub 1/3/Nb/sub 2/3/)O/sub 3/PbTiO/Sub 3/ (PZN-PT), have been shown to have superior dielectric and piezoelectric performance compared to that of PZT materials.
Journal ArticleDOI
Glassy polarization behavior in ferroelectric compounds Pb(Mg13Nb23)O3 and Pb(Zn13Nb23)O3
Gerald Burns,F. H. Dacol +1 more
TL;DR: In this article, the temperature dependence of the optic index of refraction, n(T), at several wave lengths in two ferroelectric compounds that have the simple perovskite ABO3 structure was investigated.
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