卤化物固溶体dabcoH（BrxI1−x）的铁电性和相变

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Dalton Transactions Pub Date : 2025-05-29 DOI:10.1039/d5dt00583c

Yuki Ohishi, Junya Fujiwara, Atsuko Masuya-Suzuki, Yoko Tatewaki, Sadafumi Nishihara, Shun Dekura, Tomoyuki Akutagawa, Ryo Tsunashima

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引用次数: 0

摘要

采用卤化物固溶体dabcoH（BrxI1−X）研究了氢键分子松弛剂dabcoHX （X = Br， I）的铁电行为和结构相变行为对温度和组分的依赖性。随着温度的升高和br含量的增加，观察到典型的弛豫型铁电型极化电场关系。此外，相变温度与组分有关，富i固溶体的结构在加热后可逆地变回氢键六方相。这些结果表明，在一维dabco基氢键体系中，可以通过调节Br和I离子的比例来调节弛豫铁电体。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Ferroelectricity and phase transition of halide solid-solution dabcoH(BrxI1−x)

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Ferroelectricity and phase transition of halide solid-solution dabcoH(BrxI1−x)

The temperature and composition dependence of the ferroelectric and structural phase transition behaviours of hydrogen-bonding molecular relaxor dabcoHX (X = Br, I) were investigated using a halide solid-solution, dabcoH(Br_xI_1−x). A typical relaxor ferroelectric type polarisation-electric field relationship was observed with increases in temperature and Br-content. In addition, the phase transition temperature depends on the composition, and the structure of I-rich solid-solutions changed reversibly back to a hydrogen-bonded hexagonal phase after heating. These results demonstrated the tuning of relaxor ferroelectrics by tuning the ratio of Br and I ions in the one-dimensional dabco-based hydrogen bonding system.

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来源期刊

Dalton Transactions 化学-无机化学与核化学

CiteScore

6.60

自引率

7.50%

发文量

1832

审稿时长

1.5 months

期刊介绍： Dalton Transactions is a journal for all areas of inorganic chemistry, which encompasses the organometallic, bioinorganic and materials chemistry of the elements, with applications including synthesis, catalysis, energy conversion/storage, electrical devices and medicine. Dalton Transactions welcomes high-quality, original submissions in all of these areas and more, where the advancement of knowledge in inorganic chemistry is significant.