铁电性
材料科学
塑料晶体
离子键合
Crystal(编程语言)
微晶
熔点
结晶学
相(物质)
复合材料
电介质
光电子学
化学
离子
有机化学
冶金
计算机科学
程序设计语言
作者
Jun Harada,Haruka Takahashi,Rin Notsuka,Mika Takehisa,Yukihiro Takahashi,Tatsuya Usui,Hiroki Taniguchi
标识
DOI:10.1002/ange.202215286
摘要
Abstract Among ferroelectric crystals based on small molecules, plastic/ferroelectric crystals are currently receiving particular attention because they can be used as bulk polycrystals. Herein, we show that an ionic molecular ferroelectric crystal, guanidinium tetrafluoroborate, exhibits significant malleability and multiaxial ferroelectricity despite the absence of a plastic crystal phase. Powder samples of this crystal can be processed into transparent bulk crystalline plates either by press‐forming or by melt‐growing. The plates show high ferroelectric performance and related properties, demonstrating the largest hitherto reported spontaneous polarization for bulk polycrystals of small‐molecule‐based ferroelectrics. Owing to the ready availability of large‐scale materials and processability into various bulk crystalline forms, this ferroelectric crystal represents a highly promising functional material that will boost research on diverse applications as bulk crystals.
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