Synthesis and Characterization of Ferroelectrics

The Special Issue on "Synthesis and Characterization of Ferroelectrics" reports on several physical properties of ferroelectric materials and their technological aspects. Different substitution mechanisms provide ideas toward future improvement of lead-free (Ba,Ca)(Zr,Ti)O3 piezoelectric c...

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Bibliographic Details
Main Author: Dec, Jan
Format: eBook
Language:English
Published: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute 2021
Subjects:
N/a
Online Access:
Collection: Directory of Open Access Books - Collection details see MPG.ReNa
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300 |a 1 electronic resource (74 p.) 
653 |a NBT epitaxial film 
653 |a Maxwell relation 
653 |a segregation 
653 |a dielectric relaxation 
653 |a single crystals 
653 |a electrocaloric effect 
653 |a ferroelectric properties 
653 |a charged defects 
653 |a n/a 
653 |a lead-free 
653 |a electrical conduction 
653 |a acceptor doping 
653 |a piezoelectric 
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653 |a ferroelectric materials 
653 |a capacitance properties 
653 |a characterization 
653 |a Research & information: general / bicssc 
653 |a PMN-PT 
653 |a P-E hysteresis loop 
653 |a ceramic 
653 |a RF magnetron sputtering 
653 |a PMN-32PT 
653 |a ultraviolet light 
653 |a Bridgman technique 
653 |a PMN-32PT single crystal 
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520 |a The Special Issue on "Synthesis and Characterization of Ferroelectrics" reports on several physical properties of ferroelectric materials and their technological aspects. Different substitution mechanisms provide ideas toward future improvement of lead-free (Ba,Ca)(Zr,Ti)O3 piezoelectric ceramics, including the electrocaloric effect, fluorescence, and energy storage. It is established that axial and radial element segregation differently influences electrical properties of 0.68Pb(Mg1/3Nb2/3)0.32PbTiO3 (PMN-32PT for short) single crystals. While the electrical properties along the axial direction strongly depend on the PbTiO3 content, the electrical properties along the axial direction are mainly determined by the ratio of Nb and Mg. On the other hand, Fe-substitution of PMN-32PT crystals lead to an enhancement of the coercive field due to wall pinning induced by charged defect dipoles. It is also found, that capacitors based on Pt/Na0.5Bi0.5TiO3/La0.5Sr0.5CoO3 thin films display good fatigue resistance and retention. Another lead-free thin film capacitor fabricated from Ba0.3Sr0.7Zr0.18Ti0.82 features a low leakage current density and high breakdown strength. Such capacitors are essential for energy storage. Furthermore, an enhanced electrocaloric effect on 0.73Pb(Mg1/3Nb2/3)0.27PbTiO3 single crystals is demonstrated. This effect is promising for novel solid-state cooling systems.