Ferroelectricity Driven by Twisting of Silicate Tetrahedral Chains1. Issue 31 (14th June 2013)

• Record Type: Journal Article
• Authors: Taniguchi, Hiroki; Kuwabara, Akihide; Kim, Jungeun; Kim, Younghun; Moriwake, Hiroki; Kim, Sungwng; Hoshiyama, Takuya; Koyama, Tsukasa; Mori, Shigeo; Takata, Masaki; Hosono, Hideo; Inaguma, Yoshiyuki; Itoh, Mitsuru
• Is Part Of: Angewandte Chemie international edition. Volume 52:Issue 31(2013)
• Page Start: 8088
• Page End: 8092
• Publication Date: 2013-06-14
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201302188
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>A lead‐free ferroelectric</bold>: The occurrence of ferroelectricity is demonstrated in a silicate‐based compound (Bi₂SiO₅, see picture), by direct observation of polarization switching. The mechanism of ferroelectricity in Bi₂SiO₅ has been studied by Raman scattering, transmission electron microscopy, X‐ray powder diffraction, and first‐principles calculations. The observed ferroelectricity stems from twisting of the one‐dimensional SiO₄ tetrahedral chain.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg276x40k7" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>