Počet záznamů: 1  

Incipient ferroelectricity of water molecules confined to nano-channels of beryl

  1. 1.
    SYSNO ASEP0470571
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevIncipient ferroelectricity of water molecules confined to nano-channels of beryl
    Tvůrce(i) 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
    Savinov, Maxim (FZU-D) RID
    Ostapchuk, Tetyana (FZU-D) RID, ORCID
    Petzelt, Jan (FZU-D) RID, ORCID
    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)
    Celkový počet autorů21
    Číslo článku12842
    Zdroj.dok.Nature Communications - ISSN 2041-1723
    Roč. 7, Sep (2016), 1-10
    Poč.str.10 s.
    Jazyk dok.eng - angličtina
    Země vyd.GB - Velká Británie
    Klíč. slovawater ; beryl ; ferroelectricity ; quantum fluctuations ; Curie–Weiss behaviour
    Vědní obor RIVBM - Fyzika pevných látek a magnetismus
    CEPGA14-25639S GA ČR - Grantová agentura ČR
    Institucionální podporaFZU-D - RVO:68378271
    UT WOS000385363000010
    EID SCOPUS84990247680
    DOI10.1038/ncomms12842
    AnotaceWater 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.
    PracovištěFyzikální ústav
    KontaktEva Pulcmanová, pulcman@fzu.cz, Tel.: 220 318 579
    Rok sběru2017