Anomalous Dielectric Behaviour of NH2(CH3)2Al(SO4)2.6H2O Crystals in the Ferroelectric Phase

V Kapustianik, M Fally, H Kabelka, H Warhanek

    Veröffentlichungen: Beitrag in FachzeitschriftArtikelPeer Reviewed

    Abstract

    The temperature- and frequency-dependent dielectric susceptibility parallel to the ferroelectric axis of DMAASD crystals was studied in the ferroelectric phase. The dispersion corresponding to a critical slowing down of the thermal dipole relaxation was observed in the vicinity of IMG in the frequency range 1 - 10 MHz. Besides, a dispersion which is related to the dipole reversal within the domain walls was found at lower frequencies. The latter is much more pronounced in the deuterated sample and is thought to be connected with the dynamics of hydrogen bonds.
    OriginalspracheEnglisch
    Seiten (von - bis)723-733
    Seitenumfang11
    FachzeitschriftJournal of Physics: Condensed Matter
    Jahrgang9
    Ausgabenummer3
    DOIs
    PublikationsstatusVeröffentlicht - 1997

    ÖFOS 2012

    • 103008 Experimentalphysik

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