Results 1 to 10 of about 5,651 (284)

Deciphering the atomic-scale structural origin for large dynamic electromechanical response in lead-free Bi0.5Na0.5TiO3-based relaxor ferroelectrics [PDF]

open access: yesNature 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
doaj   +2 more sources

Liquid-matter relaxor ferroelectrics by design [PDF]

open access: yesNature Communications
Knowing that traditional relaxor ferroelectrics stem from crystalline materials, one may ask whether they stabilize the liquid-matter analogy. The perspective is challenging and may enable a generic design of fluidic and flexible relaxor ferroelectrics ...
Xinxin Zhang   +9 more
doaj   +2 more sources

Barkhausen Noise in a Relaxor Ferroelectric [PDF]

open access: yesPhysical Review Letters, 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   +3 more sources

Dynamics of relaxor ferroelectrics [PDF]

open access: yesPhysical Review B, 2000
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 ...
A. E. Glazounov   +27 more
core   +3 more sources

Quasi‐Antipolar Nanoclusters Driven Superior Energy Storage in High‐Entropy Relaxor Ferroelectrics [PDF]

open access: yesAdvanced Science
Relaxor ferroelectrics featuring highly dynamic polar nanoregions hold significant potential for pulse‐power dielectric capacitor applications. Nevertheless, achieving an optimal polarization‐field response that combines low hysteresis, delayed ...
Ao Tian   +12 more
doaj   +2 more sources

Non-steady-state optothermal electromotive force in relaxor ferroelectrics [PDF]

open access: yesScientific Reports
We predict a new non-steady-state optothermal electromotive force effect in relaxor ferroelectrics. The effect is observed and studied in a PbNi $$_{1/3}$$ Ta $$_{2/3}$$ O $$_3$$ crystal at light wavelength $$\lambda =532$$ nm and room temperature, which
M. A. Bryushinin   +2 more
doaj   +2 more sources

Subterahertz dielectric relaxation in lead-free Ba(Zr,Ti)O3 relaxor ferroelectrics [PDF]

open access: yesNature Communications, 2016
Relaxor ferroelectrics possess potential microwave frequency applications due to characteristic dielectric relaxation properties however the underlying mechanism is debated.
D. Wang   +4 more
doaj   +2 more sources

Titanate-based high-entropy perovskite oxides relaxor ferroelectrics [PDF]

open access: yesScientific Reports
Different combinations of monovalent and trivalent A-cations in high-entropy perovskite oxides (HEPOs) were investigated. The multicomponent (A′0.2A″0.2Ba0.2Sr0.2Ca0.2)TiO3 (A′ = Na+, K+, A″ = Bi3+, La3+) perovskite compounds were successfully ...
Ketkaeo Bunpang   +3 more
doaj   +2 more sources

Ultrawide-temperature-stable high-entropy relaxor ferroelectrics for energy-efficient capacitors [PDF]

open access: yesNature Communications
The development of dielectric ceramics that simultaneously achieve high energy density and ultra-broad temperature stability remains a fundamental challenge for advanced electrostatic capacitors.
Shiyu Zhou   +10 more
doaj   +2 more sources

Emergent topological polarization textures in relaxor ferroelectrics [PDF]

open access: yesNature Communications
Relaxor ferroelectrics underpin high-performance actuators and sensors, yet the nature of polar heterogeneities driving their broadband dielectric response remains debated.
Maksim Eremenko   +13 more
doaj   +2 more sources

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