Antiferroelectrics: History, fundamentals, crystal chemistry, crystal structures, size effects, and applications

Antiferroelectric (AFE) materials are of great interest owing to their scientific richness and their utility in high-energy density capacitors. Here, the history of AFEs is reviewed, and the characteristics of antiferroelectricity and the phase transition of an AFE material are described. AFEs are energetically close to ferroelectric (FE) phases, and thus both the electric field strength and applied stress (pressure) influence the nature of the transition. With the comparable energetics between the AFE and FE phases, there can be a competition and frustration of these phases, and either incommensurate and/or a glassy (relaxor) structures may be observed. The phase transition in AFEs can also be influenced by the crystal/grain size, particularly at nanometric dimensions, and may be tuned through the formation of solid solutions. There have been extensive studies on the perovskite family of AFE materials, but many other crystal structures host AFE behavior, such as CuBiP2Se6. AFE applications include DC-link capacitors for power electronics, defibrillator capacitors, pulse power devices, and electromechanical actuators. The paper concludes with a perspective on the future needs and opportunities with respect to discovery, science, and applications of AFE.

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Work Title Antiferroelectrics: History, fundamentals, crystal chemistry, crystal structures, size effects, and applications
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Open Access
Creators
  1. Clive A. Randall
  2. Zhongming Fan
  3. Ian Reaney
  4. Long Qing Chen
  5. Susan Trolier-McKinstry
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Journal of the American Ceramic Society
Publication Date August 1, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1111/jace.17834
Deposited December 08, 2021

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  • Added Antiferroelectrics-History__Fundamentals__Crystal_Chemistry__Crystal_Structures__Size_Effects__and_Applications.pdf
  • Added Creator Clive A. Randall
  • Added Creator Zhongming Fan
  • Added Creator Ian Reaney
  • Added Creator Long Qing Chen
  • Added Creator Susan Trolier-McKinstry
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