Results 111 to 120 of about 684 (200)

Enhanced Energy Storage Performance by A–B Site Ambipolar Co-Doping in Antiferroelectrics

open access: yes
Antiferroelectric materials are promising to be used for power capacitive devices. To improve the energy storage performance, solid-solution and defect engineering are widely used to suppress the long-range order by introducing local heterogeneities ...
Ying Yang (24175)   +11 more
core   +1 more source

What is a ferroelectric-a materials designer perspective

open access: yes, 2016
Ferroelectrics are usually defined as polar materials that display polarisation hysteresis. This is a functional definition. A structural definition exists too, based solely on symmetry arguments. The structural definition, useful e.g.
Setter, Nava
core   +1 more source

Energy-storage properties of ternary system NaNbO3-LaFeO3-Sr(Fe0.5Nb0.5)O3 ceramics

open access: yesJournal of Science: Advanced Materials and Devices
Capacitors with dielectrics as media have drawn great attention for the energy-storage application of high-power electronic systems. Sodium niobate (NaNbO3) is the famous antiferroelectric with more phases and phase transitions, but without perfect ...
Dongxu Pan   +8 more
doaj   +1 more source

Translational Antiphase Boundaries in NaNbO3 Antiferroelectrics

open access: yes
Planar defects are known to be of importance in affecting the functional properties of materials. Translational antiphase boundaries (APBs) in particular have attracted considerable attention in perovskite oxides, but little is known in lead-free ...
Tian-Shu Jiang (17621094)   +9 more
core   +1 more source

The isotope effect in hydrogen-bonded systems

open access: yes, 1998
: The giant isotope effect on the ferro- and antiferroelectric transition temperature upon deuteration of hydrogen-bonded systems is well known experimentally since various decades.
Bussmann-Holder, A., Michel, K.H.
core   +1 more source

Polarizability induced cooperative proton ordering, coexistence of order/disorder and displacive dynamics and isotope effects in hydrogen-bonded systems

open access: yes, 2000
: Despite the general belief that hydrogen-bonded ferro- and antiferroelectrics undergo a pure order/disorder transition at the structural instability, new NMR data and a new theoretical concept yield convincing evidence that a pronounced displacive ...
Dalal, N.   +5 more
core   +1 more source

Cerâmicos à base de SrTio3 para aplicações em dispositivos sintonizáveis [PDF]

open access: yes, 2005
Doutoramento em Engenharia e Ciências de MateriaisO titanato de estrôncio (ST) é conhecido como um paraeléctrico quantumno qual a permitividade dieléctrica aumenta gradualmente após arrefecimento até cerca de 0 K e nenhuma anomalia do tipo ferroeléctrica
Tkach, Oleksandr
core  

A brief review on the model antiferroelectric PbZrO3 perovskite-like material

open access: yes, 2011
International audienceWe survey the current state of the model antiferroelectric PbZrO3 (PZO) material. The present paper may be seen as a short and non-exhaustive review of the main properties of this typical antiferroelectric system with perovskite ...
Dkhil, B.   +3 more
core   +1 more source

Tailoring high-energy storage NaNbO₃-based materials from antiferroelectric to relaxor states [PDF]

open access: yes
Reversible field-induced phase transitions define antiferroelectric perovskite oxides and lay the foundation for high-energy storage density materials, required for future green technologies.
Koruza, Jurij   +11 more
core   +1 more source

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