Relaxor ferroelectric behaviour observed in (Ca0.5Sr0.5Ba0.5Pb0.5)Nb2O7 perovskite layered structure ceramics

Hu, Zimeng; Zhang, Hangfeng; Reece, Michael J.; Viola, Giuseppe; Yan, Haixue

doi:10.1016/j.jeurceramsoc.2022.09.045

Cited by 8 publications

(2 citation statements)

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“…Beyond piezoelectricity, 60,63–66 considerable strides have also been made in ferroelectricity, 53,59,67 relaxor FE behavior, 61 dielectric permittivity and loss, 68,69 and dielectric relaxation 70 in FEs engineering by elevating configuration entropy. For instance, an A‐site equimolar (Pb 0.25 Ba 0.25 Sr 0.25 Ca 0.25 )TiO 3 medium‐entropy relaxor FE system boasting a configuration entropy of 1.39 R demonstrated low loss (<0.015).…”

Section: High‐entropy Ceramics With High Piezoelectric Propertiesmentioning

confidence: 99%

“…Progress in high‐entropy ceramics has been notable in recent years, yielding a series of comprehensive reviews 42,50,56–58 . Building on this, researchers have extended the concept of high‐entropy to FEs, leading to the development of diverse high‐entropy FE materials, including high‐entropy perovskite‐type, bismuth layered structures, 59,60 perovskite layered structures, 61 and pyrochlore structures 62 . Among these, the perovskite‐type FEs with a general ABO 3 structure have garnered significant attention due to their straightforward structure, ease of doping, and diverse electrical and magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

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High‐performance ferroelectric based materials via high‐entropy strategy: Design, properties, and mechanism

Zhang,

Chen,

Liu

et al. 2023

InfoMat

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High‐performance ferroelectric materials are widely used in various electronic devices owing to the function of mutual conversion among different energies, which mainly relates to their special structure gene of polarization configuration. Recent researches show that the high‐entropy strategy has emerged as an effective and flexible approach for boosting physical properties in high‐entropy ferroelectrics via the delicate design of local polarization configurations and other intrinsic effects caused by entropy increment, such as entropy stabilization, lattice disorder, inhibition of grain coarsening, improved mechanical properties, cocktail effect, and so on. In this review, the recent research progress about high‐entropy ferroelectrics has been summarized, especially for the directional design of novel local polarization configurations according to the characteristics of different electrical properties such as high piezoelectricity, high‐efficiency energy storage, and large electrostriction, providing a guidance for designing and exploring more novel local polarization configurations in high‐entropy ferroelectrics for generating higher performance.image

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