Results 21 to 30 of about 11,892 (273)

Temperature evolution of diffuse scattering in Sr0.6Ba0.4Nb2O6 single crystal in the relaxor state

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2020
Temperature dependences of diffuse scattering of synchrotron radiation on model relaxor single crystal Sr0.6Ba0.4Nb2O6 have been studied in the temperature interval 90 – 290 K in the vicinities of lattice points (3 3 2), (4 1 2) and (0 0 2) in the ...
Vanina Polina   +4 more
doaj   +1 more source

Advances in the Growth and Characterization of Relaxor-PT-Based Ferroelectric Single Crystals

open access: yesCrystals, 2014
Compared to Pb(Zr1−xTix)O3 (PZT) polycrystalline ceramics, relaxor-PT single crystals offer significantly improved performance with extremely high electromechanical coupling and piezoelectric coefficients, making them promising materials for ...
Jun Luo, Shujun Zhang
doaj   +1 more source

Anelastic relaxor behavior of Pb(Mg1/3Nb2/3)O3 [PDF]

open access: yes, 2013
Elastic storage modulus and loss of relaxor lead magnesium niobate ceramics, Pb(Mg1/3Nb2/3)O3, have been measured with dynamic mechanical analyzer in single cantilever mode in the temperature range from 170 K to 320 K and at frequencies from 0.1 Hz to 50
Damjanovic, Dragan, Ursic, Hana
core   +2 more sources

Influence of neutron and gamma irradiation on the electrocaloric properties of Mn-doped 0.9Pb(Mg1/3Nb2/3)O3–0.1PbTiO3 ceramics

open access: yesJPhys Energy, 2023
The influence of neutron and gamma irradiation on the low- and high-field dielectric and electrocaloric (EC) properties of Mn-doped 0.9Pb(Mg _1/3 Nb _2/3 )O _3 –0.1PbTiO _3 (PMN–10PT) ceramic is studied.
Ankita Sarkar   +8 more
doaj   +1 more source

PEROVSKITES AND OTHER FRAMEWORK STRUCTURE CRYSTALLINE MATERIALS (BOOK' FIRST PAGES AND PREFACE)

open access: yesMaterials and Devices, 2021
Perovskites are among the most famous materials due to their exceptional properties: they present nearly all existing types of interesting properties, in particular as ferroics or multiferroics, they may be insulators, (super)conductors, or ...
Saint-Grégoire P., Smirnov M.
doaj   +1 more source

Molecular mobility interpretation of the dielectric relaxor behavior in fluorinated copolymers and terpolymers [PDF]

open access: yes, 2013
Thermo Stimulated Current and Dynamic Dielectric Spectroscopy have been applied to investigate dielectric relaxation modes of poly(vinylidene-fluoride trifluoroethylene) copolymer and poly(vinylidene-fluoridetrifluoroethylene-chlorofluoroethylene ...
Capsal, Jean-Fabien   +2 more
core   +5 more sources

Temperature-dependent energy storage characterization of Pb-free relaxor ferroelectrics [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
The energy storage properties of (1−x)Bi0.5Na0.5TiO3–xBaTiO3(0≤x≤0.08) (BNT–BT) ceramics obtained via sol–gel method are determined from the polarization versus electric field (P–E) loops at various temperatures. The energy storage densities are observed
Sarir Uddin   +4 more
doaj   +1 more source

Random electric field instabilities of relaxor ferroelectrics

open access: yesnpj Quantum Materials, 2017
Complex oxides: A random field state in a relaxor ferroelectric A microscopic model shows how compositional disorder in the form of quenched random electric fields acting in concert with dipolar interactions prohibit long-range ordering in relaxor ...
José R. Arce-Gamboa   +1 more
doaj   +1 more source

Enhanced Energy‐Storage Properties and Good Temperature Stability in 0.92(Sr0.7Bi0.2)TiO3–0.08Bi(Mg0.5Hf0.5)O3 Relaxor Ferroelectric Ceramic

open access: yesAdvanced Energy & Sustainability Research, 2021
Herein, the (1 − x)(Sr0.7Bi0.2)TiO3–xBi(Mg0.5Hf0.5)O3 (SBT–100xBMH, x = 0.04–0.10) relaxor ferroelectric ceramics are fabricated via the high‐temperature solid‐state reaction method.
Xi Kong   +3 more
doaj   +1 more source

Barkhausen Noise in a Relaxor Ferroelectric

open access: yes, 2001
Barkhausen noise, including both periodic and aperiodic components, is found in and near the relaxor regime of a familiar relaxor ferroelectric, PbMg$_{1/3}$Nb$_{2/3}$O$_3$, driven by a periodic electric field.
D. Viehland   +12 more
core   +1 more source

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