Results 271 to 280 of about 292,067 (328)
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Nanocrystalline Ferroelectric/Relaxor Multilayers
Ferroelectrics, 2002After investigations on sputtered nanocrystalline ferroelectric Pb 0.76 Ca 0.24 TiO 3 (PTC) films and nanocrystalline relaxor films, namely Pb(Sc 0.5 Ta 0.5 )O 3 (PST), Pb(Sc 0.5 Nb 0.5 )O 3 (PSN) and Pb(Mg 1/3 Nb 2/3 )O 3 (PMN) we started to investigate effects in multilayers of nanocrystalline ferroelectric and relaxor films.
Heinz Schmitt +8 more
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ACS Applied Materials and Interfaces, 2019
Thermal-stable dielectric capacitors with high energy density and power density have attracted increasing attention in recent years. In this work, (1-x)Bi0.5Na0.5TiO3-xNaTaO3 ((1-x)BNT-xNT, x=0~0.30) lead-free relaxor ferroelectric ceramics are developed
Xuefan Zhou +5 more
semanticscholar +1 more source
Thermal-stable dielectric capacitors with high energy density and power density have attracted increasing attention in recent years. In this work, (1-x)Bi0.5Na0.5TiO3-xNaTaO3 ((1-x)BNT-xNT, x=0~0.30) lead-free relaxor ferroelectric ceramics are developed
Xuefan Zhou +5 more
semanticscholar +1 more source
Advanced Functional Materials, 2018
Long‐range ordering of dipoles is a key microscopic signature of ferroelectrics. These ordered dipoles form ferroelectric domains, which can be reoriented by electric fields.
Fei Li +6 more
semanticscholar +1 more source
Long‐range ordering of dipoles is a key microscopic signature of ferroelectrics. These ordered dipoles form ferroelectric domains, which can be reoriented by electric fields.
Fei Li +6 more
semanticscholar +1 more source
Phenomenological theory of uniaxial relaxor ferroelectrics
Journal of Physics: Condensed Matter, 2016A phenomenological thermodynamic theory of uniaxial relaxor strontium barium niobate [Formula: see text] is developed using the Landau-Devonshire approach with two order parameters. The fourth-order thermodynamic potential allowed to explain the shape of the polarization hysteresis loops experimentally observed at different temperatures.
V B, Shirokov +2 more
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Domain Engineered Relaxor Ferroelectric Single Crystals
Continuum Mechanics and Thermodynamics, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, T., Lynch, C. S.
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Glassy polarization behavior of relaxor ferroelectrics
Physical Review B, 1992The polarization behavior of La-modified lead zirconate titanate relaxors has been investigated for various electrical and thermal histories. The field-cooled and zero-field-cooled behaviors were both studied. The magnitude of both polarizations were found to be equal above a critical temperature.
, Viehland +4 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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Journal of Materials Chemistry A, 2019
By composition engineering and subtle criticality confinement, a giant recoverable electro-strain (S > 0.7%) with reduced hysteresis is reported in BNT-based relaxor ferroelectrics, which can be kept at a high level (
Jie Yin +7 more
semanticscholar +1 more source
By composition engineering and subtle criticality confinement, a giant recoverable electro-strain (S > 0.7%) with reduced hysteresis is reported in BNT-based relaxor ferroelectrics, which can be kept at a high level (
Jie Yin +7 more
semanticscholar +1 more source
Relaxing with relaxors: a review of relaxor ferroelectrics
Advances in Physics, 2011Relaxor 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 +4 more
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, 2020
For Bi0.5Na0.5TiO3-based complex oxides, a critical bottleneck is that a higher depolarization temperature Td is often obtained at the cost of sacrificing their piezoelectricity d33 (d33 ∝ 1/Td), which severely restricts the further development of this ...
Jie Yin +7 more
semanticscholar +1 more source
For Bi0.5Na0.5TiO3-based complex oxides, a critical bottleneck is that a higher depolarization temperature Td is often obtained at the cost of sacrificing their piezoelectricity d33 (d33 ∝ 1/Td), which severely restricts the further development of this ...
Jie Yin +7 more
semanticscholar +1 more source