Results 181 to 190 of about 1,179 (218)
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A phenomenology of relaxor ferroelectrics
Ferroelectrics, 1997Abstract We propose a phenomenological theory for the dielectric properties of relaxor ferroelectrics based on the assumption that the polar clusters distributed in highly polarizable host lattice are responsible for the relaxor behavior. Two major differences between relaxors ferroelectrics and conventional orderdisorder ferroelectrics have been ...
B. E. Vugmeister, H. Rabitz
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Appearance of the relaxor behavior
JETP Letters, 2015© 2015, Pleiades Publishing, Inc. A model of the appearance of the relaxor behavior in Pb1 − yLay(Zr1 − xTix)1 − y/4O3 under the variation of the lanthanum concentration has been proposed. The temperature behavior of the permittivity in the region of the diffuse phase transition and dispersion of the dielectric properties associated with the dynamics ...
Mamin R., Shaposhnikova T.
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Photostimulated conductivity in relaxors
Physics of the Solid State, 2004Photoconductivity of lead magnesium niobate is studied, and the spectral dependence of the photo-conductivity is measured in the vicinity of the permittivity maximum associated with a diffuse phase transition. Photostimulated currents due to the Dember effect are detected.
S. A. Migachev +2 more
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Relaxor as heterophase fluctuation
Ferroelectrics, 2000A neutron diffuse scattering experiment on the relaxor ferroelectric PZN(PbZn1/3Nb2/3O3) has been carried out.
Yasusada Yamada +6 more
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Relaxor Ferroelectric Polymers
Ferroelectrics, 2006The relaxor ferroelectric polymers, i.e., the poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] based terpolymers and high energy electron irradiated copolymers, provide unique opportunity to investigate the ferroelectric relaxor behavior in polymeric materials.
Shihai Zhang +8 more
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Ferroelectrics, 1994
Abstract Dielectric properties of relaxor ferroelectrics are characterized by giant and temperature-insensitive dielectric constants and large frequency dependence (dielectric relaxation), and therefore useful for high permittivity capacitors. Relaxor ferroelectrics also reveal superior characteristics in electrostriction and electrooptic effects ...
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Abstract Dielectric properties of relaxor ferroelectrics are characterized by giant and temperature-insensitive dielectric constants and large frequency dependence (dielectric relaxation), and therefore useful for high permittivity capacitors. Relaxor ferroelectrics also reveal superior characteristics in electrostriction and electrooptic effects ...
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Polar nanoclusters in relaxors
Journal of Materials Science, 2006The central problem in the physics of relaxors is the nature of the polar nanoclusters. Whereas relaxors are homogeneous at high enough temperatures, polar nanoregions immersed in a neutral matrix are formed below a certain temperature Tb. This should lead to a two component system.
R. Blinc +3 more
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Structure of Nanodomains in Relaxors
AIP Conference Proceedings, 2003Results of study of the spatial distribution of polarization by scattering (X‐ray and neutron) and Piezoresponse Force Microscopy techniques are presented for several relaxors both cubic (PMN and PMNPT solid solutions) and uniaxial (SBN). It is demonstrated that in all cases except pure PMN cooled in zero electric field polar nanodomains are formed. In
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Supercritical Relaxor Nanograined Ferroelectrics for Ultrahigh‐Energy‐Storage Capacitors
Advanced Materials, 2022Aiwen Xie, Jian Fu, Ruzhong Zuo
exaly