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Incipient ferroelectricity of water molecules confined to nano-channels of beryl
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SYSNO ASEP 0470571 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Incipient ferroelectricity of water molecules confined to nano-channels of beryl Author(s) Gorshunov, B. P. (RU)
Torgashev, V. I. (RU)
Zhukova, E.S. (RU)
Thomas, V.G. (RU)
Belyanchikov, M. A. (RU)
Kadlec, Christelle (FZU-D) RID, ORCID
Kadlec, Filip (FZU-D) RID, ORCID, SAI
Savinov, Maxim (FZU-D) RID, ORCID
Ostapchuk, Tetyana (FZU-D) RID, ORCID
Petzelt, Jan (FZU-D) RID, ORCID, SAI
Prokleška, J. (CZ)
Tomas, P. V. (RU)
Pestrjakov, E.V. (RU)
Fursenko, D.A. (RU)
Shakurov, G.S. (RU)
Prokhorov, A. S. (RU)
Gorelik, V. S. (RU)
Kadyrov, L.S. (RU)
Uskov, V.V. (RU)
Kremer, R. K. (DE)
Dressel, M. (RU)Number of authors 21 Article number 12842 Source Title Nature Communications. - : Nature Publishing Group
Roč. 7, Sep (2016), 1-10Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords water ; beryl ; ferroelectricity ; quantum fluctuations ; Curie–Weiss behaviour Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA14-25639S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000385363000010 EID SCOPUS 84990247680 DOI 10.1038/ncomms12842 Annotation Water is characterized by large molecular electric dipole moments and strong interactions between molecules; however, hydrogen bonds screen the dipole–dipole coupling and suppress the ferroelectric order. The situation changes drastically when water is confined: in this case ordering of the molecular dipoles has been predicted, but never unambiguously detected experimentally. In the present study we place separate H2O molecules in the structural channels of a beryl single crystal so that they are located far enough to prevent hydrogen bonding, but close enough to keep the dipole–dipole interaction, resulting in incipient ferroelectricity in the water molecular subsystem. We observe a ferroelectric soft mode that causes Curie–Weiss behaviour of the static permittivity, which saturates below 10 K due to quantum fluctuations. The ferroelectricity of water molecules may play a key role in the functioning of biological systems. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2017
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