Results 11 to 20 of about 5,651 (284)
Harnessing local inhomogeneity for enhanced dielectric energy storage [PDF]
Nature CommunicationsInorganic dielectric capacitors are highly demanded in pulsed systems due to their high-power output, but the low energy density limits device miniaturization.
Yiqian Liu +6 more
doaj +2 more sources
Theory of relaxor-ferroelectricity [PDF]
Scientific Reports, 2020 AbstractRelaxor-ferroelectrics are fascinating and useful materials, but the mechanism of relaxor-ferroelectricity has been puzzling the scientific community for more than 65 years. Here, a theory of relaxor-ferroelectricity is presented based on 3-dimensional-extended-random-site-Ising-model along with Glauber-dynamics of pseudospins. We propose a new
Zhang, Li-Li, Huang, Yi-Neng
openaire +2 more sources
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
openaire +2 more sources
Abnormal phase transition and polarization mismatch phenomena in BaTiO3-based relaxor ferroelectrics [PDF]
Journal of Advanced Dielectrics, 2019 Relaxor ferroelectrics have been extensively studied due to their outstanding dielectric, piezoelectric, energy storage, and electro-optical properties.
Qingyuan Hu, Xiaoyong Wei
doaj +1 more source
Piezoelectric response of disordered lead-based relaxor ferroelectrics
Communications Materials, 2023 Lead-based relaxor ferroelectrics are known for their large piezoelectric response, but the relation between the response and the nanoscale structure of these materials is still under debate. In this Perspective, the microscopic implications of the polar
Tadej Rojac
doaj +1 more source
Crystals, 2023 Relaxor ferroelectrics play a vital role as functional components in electromechanical devices. The observation of micro-scale domain structure evolution under electric bias in relaxor ferroelectrics has posed challenges due to their complex domain ...
Kai Li +11 more
doaj +1 more source
Materials & Design, 2021 The concept of high entropy ceramics opens up the possibility to optimise the properties of relaxor ferroelectrics with Aurivilius phase structures. In this paper, two new multi-element substituted Aurivillius phase ceramics, (Ca0.25Sr0.25Ba0.25Pb0.25 ...
Man Zhang +5 more
doaj +1 more source
A Bi1/2K1/2TiO3-based ergodic relaxor ceramic for temperature-stable energy storage applications
Materials & Design, 2021 Relaxor ferroelectrics are attractive for the high energy storage density. However, the polarization responses of most relaxor ferroelectrics are sensitive to temperature, thus leading to thermal-dependent energy storage properties.
Yongxing Wei +8 more
doaj +1 more source
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
openaire +3 more sources
Journal of Advanced Dielectrics, 2022 Relaxor-based ternary Pb([Formula: see text][Formula: see text])O3–Pb([Formula: see text][Formula: see text])O3–PbTiO3 (PIN–PMN–PT) single crystals and ceramics are promising candidates for high-performance electromechanical conversion devices.
Xudong Qi +5 more
doaj +1 more source