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DOI | 10.1038/s41467-018-03431-5 |
Proton tautomerism for strong polarization switching | |
Horiuchi, Sachio1; Kobayashi, Kensuke2; Kumai, Reiji2; Ishibashi, Shoji3 | |
2017-02-16 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | Ferroelectrics based on proton tautomerism are promising in low-field and above-room-temperature operations. Here seven organic ferroelectric crystals are examined to search for efficient switching of strong spontaneous polarization on proton tautomerism. Solution-grown crystals exhibit strong pinning of ferroelectric domain walls, but excellent switching performance is awakened by depinning domain walls under thermal annealing and/or repetitive bipolar pulses with a high voltage. Compared with ferroelectric polymers such as poly-vinylidefluoride, the optimized polarizations are comparable or stronger in magnitude whereas the coercive fields are two orders of magnitude weaker. The polarization of croconic acid, in particular, breaks its own record for organic systems in increasing from 21 to 30 mu C cm(-2) and now exceeds those of some commercial ferroelectric materials such as SrBi2Ta2O9 and BaTiO3. Optimization reduces the discrepancy of the spontaneous polarization with the results of the first-principles calculations to less than 15%. The cooperative roles of proton transfer and p-bond switching are discussed by employing the point-charge model and hydrogen-bond geometry. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394224900001 |
WOS关键词 | ROOM-TEMPERATURE FERROELECTRICITY ; CENTER-DOT-O ; HYDROGEN ; DIELECTRICS ; ANISOTROPY ; ACID |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/203716 |
专题 | 资源环境科学 |
作者单位 | 1.Natl Inst Adv Ind Sci & Technol, FLEC, Flexible Elect Res Ctr, Tsukuba, Ibaraki 3058565, Japan; 2.High Energy Accelerator Res Org KEK, Condensed Matter Res Ctr CMRC & Photon Factory, Inst Mat Struct Sci, Tsukuba, Ibaraki 3050801, Japan; 3.Natl Inst Adv Ind Sci & Technol, Res Ctr Computat Design Adv Funct Mat CD FMat, Tsukuba, Ibaraki 3058568, Japan |
推荐引用方式 GB/T 7714 | Horiuchi, Sachio,Kobayashi, Kensuke,Kumai, Reiji,et al. Proton tautomerism for strong polarization switching[J]. NATURE COMMUNICATIONS,2017,8. |
APA | Horiuchi, Sachio,Kobayashi, Kensuke,Kumai, Reiji,&Ishibashi, Shoji.(2017).Proton tautomerism for strong polarization switching.NATURE COMMUNICATIONS,8. |
MLA | Horiuchi, Sachio,et al."Proton tautomerism for strong polarization switching".NATURE COMMUNICATIONS 8(2017). |
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