Results 291 to 300 of about 33,110 (327)

Dual-Functional High-Entropy Polymer Exhibiting Giant Cross-Energy Couplings at Low Fields. [PDF]

Small Sci
Rui G, Zhu W, Li L, Lee J, Guo Y, Zou Q, Wu S, Li R, Lannuzel T, Domingues Dos Santos F, Aubart MA, Kim SH, Chen LQ, Zhu L, Liu ZK, Zhang QM.   +15 more
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Magnetoelectric relaxor

Applied Physics Letters, 2007
The site and charge disordered solid solution 0.8Pb(Fe1∕2Nb1∕2)O3–0.2Pb(Mg1∕2W1∕2)O3 is a magnetoelectric relaxor which shows broad and frequency dependent maxima both in the electric as well as in the magnetic susceptibilities. The Vogel-Fulcher-type electric relaxor freeze-out is accompanied by a significant magnetic anomaly demonstrating ...
A. Levstik, V. Bobnar, C. Filipič, J. Holc, M. Kosec, R. Blinc, Z. Trontelj, Z. Jagličić   +7 more
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Biferroic relaxors

Applied Physics Letters, 2011
Epitaxial biferroic relaxors of formula Pb[(Zr0.53Ti0.47)0.4(Fe0.67W0.33)0.6]O3 (PZTFW) were grown by pulsed laser deposition (PLD) techniques. Raman spectra revealed a global Fm3m symmetry with two high-frequency A1g modes that imply the existence of polar nano-regions (PNRs). Near room temperature, frequency-dependent dielectric patterns follow Vogel-
Ashok Kumar, J. F. Scott, R. S. Katiyar
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Lead‐Free Relaxor Ferroelectrics

Journal of the American Ceramic Society, 2011
Feature size is a natural determinant of material properties. Its design offers the technological perspectives for material improvement. Grain size, crystallite size, domain width, and structural defects of different nature constitute the classical design elements.
Shvartsman, Vladimir, Lupascu, Doru C.
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Relaxing with relaxors: a review of relaxor ferroelectrics

Advances in Physics, 2011
Relaxor ferroelectrics were discovered in the 1950s but many of their properties are not understood. In this review, we shall concentrate on materials such as PMN (PbMg1/3Nb2/3O3), which crystallize in the cubic perovskite structure but with the Mg ion, charge 2+, and the Nb ion, charge 5+, randomly distributed over the B site of the perovskite ...
R. A. Cowley, S. N. Gvasaliya, S. G. Lushnikov, B. Roessli, G. M. Rotaru   +4 more
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Dielectric relaxor and ferroelectric relaxor: Bi-doped paraelectric SrTiO3

Journal of Applied Physics, 2002
In this article, we report the evolution of the dielectric behavior from a dielectric relaxor to a ferroelectric relaxor with variation of Bi concentration in (Sr1−1.5xBix)TiO3 (0⩽x⩽0.2). In the doping range 0.0005⩽x⩽0.002, two dielectric modes A and B are induced.
Chen Ang, Zhi Yu
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Relaxor ferroelectric transducers

IEEE Symposium on Ultrasonics, 2002
Novel ultrasonic transducers whose sensitivity can be controlled with a DC bias field have been developed by utilizing relaxor ferroelectrics as a transducer material in place of conventional piezoelectrics. Relaxor ferroelectrics have a large bias-field-induced piezoelectricity as well as a giant electrostrictive effect due to their extremely large ...
H. Takeuchi, H. Masuzawa, C. Nakaya, Y. Ito   +3 more
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Relaxor ferroelectric materials

IEEE Symposium on Ultrasonics, 2002
The authors review relaxor ferroelectrics and associated phenomena. It is noted that the anomalously large dielectric constants (K) of relaxor ferroelectrics make them ideal for multilayer capacitors, electrostrictive actuators, and E-field-induced piezoelectrics for low-frequency sonar and high-frequency biomedical transducers.
T.R. Shrout, J. Fielding
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Relaxor ferroelectric polymers

ISAF 1998. Proceedings of the Eleventh IEEE International Symposium on Applications of Ferroelectrics (Cat. No.98CH36245), 2002
An exceptionally high electrostrictive response was observed in electron irradiated polyvinylidene fluoride-trifluoroethylene (P(VDF-TrFE)) copolymer. Moreover, the transverse strain of the material can be tuned over a large range by different sample treatment conditions.
Q.M. Zhang, V. Bharti, Z.-Y. Cheng, null Xing-Zhong Zhao   +3 more
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Optical Properties of Relaxor Ferroelectrics

Ferroelectrics, 2004
The optical absorption spectrum, luminescent emission and photoconductivity were investigated in single crystal PbMg1/3Nb2/3O3 and in the Pb0.91La0.09(Zr0.65Ti0.35)O3 ceramics in the wide temperature region. The spectrum of the luminescence correlates with spectrum of photoconductivity emission.
Zverev D., Migachev S., Mamin R., Nikitin S., Sadykov M.   +4 more
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