Results 11 to 20 of about 11,801 (277)
Dynamics of relaxor ferroelectrics [PDF]
Physical Review B, 2001 We study a dynamic model of relaxor ferroelectrics based on the spherical random-bond---random-field model and the Langevin equations of motion. The solution to these equations is obtained in the long-time limit where the system reaches an equilibrium state in the presence of random local electric fields.
Pirc, R., Blinc, R., Bobnar, V.
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Dielectric and ferroelectric behaviour of Zr-doped BaTiO3 perovskites [PDF]
Processing and Application of Ceramics, 2020 The crystal structure, microstructure, dielectric and ferroelectric behaviour of Ba(ZrxTi1-x)O3 (x = 0.05, 0.10, 0.15, 0.20, 0.25) perovskites fabricated by high-temperature solid state method were investigated.
Qi Xu, Zihan Li
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NMR and the local structure of relaxors [PDF]
Science of Sintering, 2002 The relaxor transition in cubic perovskite relaxors (PMN, PSN and PST) and tungsten bronze relaxor (SBN) has been studied by NMR. The observed spectra are composed of a narrow -1/2 « 1/2 central transition superimposed on a broad background due to ...
Blinc R., Zalar B., Gregorovič Alan
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The permittivity – thickness relationship of a PMN (111) single crystal
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023 In this work, the permittivity measurements of lead magnoniobate PMN (111) single crystals with thicknesses of 400 µm, 25 µm and 10 µm have been carried out at a frequency of 0.1 Hz.
Vakulenko Aleksandr +3 more
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Nature Communications, 2022 For relaxor ferroelectrics, correlating their properties and local structures is challenging. Here, the authors correlate the atomic-scale structure and the large dynamic electromechanical property in Bi0.5Na0.5TiO3-based relaxor ferroelectrics.
Jie Yin +14 more
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Nanomaterials, 2023 A novel high-entropy perovskite powder with the composition Bi0.2K0.2Ba0.2Sr0.2Ca0.2TiO3 was successfully synthesized using a modified Pechini method.
Vasile-Adrian Surdu +7 more
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Dielectric and electro-mechanic nonlinearities in perovskite oxide ferroelectrics, relaxors, and relaxor ferroelectrics [PDF]
Journal of Applied Physics, 2021 The polarization and strain response of ferroelectric materials at electric fields below the macroscopic coercive field is of paramount importance for the operation of many electronic devices. The response of real ferroelectric and related materials is, in general, complex and difficult to interpret.
Lukas M. Riemer +5 more
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High Entropy Oxide Relaxor Ferroelectrics
ACS Applied Materials & Interfaces, 2022 Relaxor ferrolectrics are important in technological applications due to a strong electromechanical response, energy storage capacity, electrocaloric effect, and pyroelectric energy conversion properties. Current efforts to discover and design new materials in this class generally rely on substitutional doping of known ferroelectrics, as slight changes
Yogesh Sharma +15 more
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Semiconductor/relaxor 0–3 type composites: A novel strategy for energy storage capacitors
Journal of Science: Advanced Materials and Devices, 2021 We report a novel strategy to enhance the dielectric breakdown strength and the energy storage performance of lead-free relaxor ferroelectric ceramics through the fabrication of semiconductor/relaxor 0–3 type composites based on 0.6Ba(Zr0.2Ti0.8)O3-0.4 ...
A.R. Jayakrishnan +5 more
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Temperature-dependent energy storage characterization of Pb-free relaxor ferroelectrics [PDF]
Journal 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
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