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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Improper Ferroelectricity in Stuffed Aluminate Sodalites for Pyroelectric Energy Harvesting

http://hdl.handle.net/2237/26772
http://hdl.handle.net/2237/26772
3af099a1-67f1-49c6-8666-74481bef04b5
名前 / ファイル ライセンス アクション
PhysRevApplied7.pdf PhysRevApplied7.pdf (4.8 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2017-07-05
タイトル
タイトル Improper Ferroelectricity in Stuffed Aluminate Sodalites for Pyroelectric Energy Harvesting
言語 en
著者 Maeda, Yusaku

× Maeda, Yusaku

WEKO 72653

en Maeda, Yusaku

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Wakamatsu, Toru

× Wakamatsu, Toru

WEKO 72654

en Wakamatsu, Toru

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Konishi, Ayako

× Konishi, Ayako

WEKO 72655

en Konishi, Ayako

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Moriwake, Hiroki

× Moriwake, Hiroki

WEKO 72656

en Moriwake, Hiroki

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Moriyoshi, Chikako

× Moriyoshi, Chikako

WEKO 72657

en Moriyoshi, Chikako

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Kuroiwa, Yoshihiro

× Kuroiwa, Yoshihiro

WEKO 72658

en Kuroiwa, Yoshihiro

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Tanabe, Kenji

× Tanabe, Kenji

WEKO 72659

en Tanabe, Kenji

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Terasaki, Ichiro

× Terasaki, Ichiro

WEKO 72660

en Terasaki, Ichiro

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Taniguchi, Hiroki

× Taniguchi, Hiroki

WEKO 72661

en Taniguchi, Hiroki

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 © 2017 American Physical Society
抄録
内容記述 In the present study, we demonstrate ferroelectricity in stuffed aluminate sodalites (Ca1−xSrx)8[AlO2]12(WO4)2 (x≤0.2) (C1−xSxAW). Pyroelectric measurements clarify switchable spontaneous polarization in polycrystalline C1−xSxAW, whose polarization values are on the order of 10^−2  μC/cm^2 at room temperature. A weak anomaly in the dielectric permittivity at temperatures near the ferroelectric transition temperature suggests improper ferroelectricity of C1−xSxAW for all investigated values of x. A comprehensive study involving synchrotron x-ray powder diffraction measurements, molecular dynamics simulations, and first-principles calculations clarifies that the ferroelectric phase transition of C1−xSxAW is driven by the freezing of the fluctuations of WO4 tetrahedra in the voids of an [AlO2]12^12− framework. The voltage response and electromechanical coupling factor of C1−xSxAW estimated from the present results indicate that this material exhibits excellent performance as a pyroelectric energy harvester, suggesting that aluminate sodalites exhibit great promise as a class of materials for highly efficient energy-harvesting devices.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 American Physical Society
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1103/PhysRevApplied.7.034012
ISSN
収録物識別子タイプ PISSN
収録物識別子 2331-7019
書誌情報 en : Physical Review Applied

巻 7, 号 3, p. 034012-034012, 発行日 2017-03-24
著者版フラグ
値 publisher
URI
識別子 http://doi.org/10.1103/PhysRevApplied.7.034012
識別子タイプ DOI
URI
識別子 http://hdl.handle.net/2237/26772
識別子タイプ HDL
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