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On the dynamic dielectric behaviour of (CH3NH3)3Sb2Br9(MABA).
Autorzy
Rok wydania
2003
Czasopismo
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences
Numer woluminu
58a
Strony
189-193
DOI
10.1515/zna-2003-0401
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The complex electric permittivity of ferroelectric (CH3NH3)3Sb2Br9 (MABA) single crystals has been measured in the frequency range 1 kHz - 3 GHz between 15 and 300 K. The dynamic dielectric behaviour of MABA is determined by the properties of high frequency relaxation of Cole-Cole type. It is thermally activated and characterised by a relatively small activation energy. The phase transitions at 168 and 134 K influence the amplitude of the relaxation (Δε) without any important changes in the relaxation frequency.
Słowa kluczowe
Dielectric Response, Phase Transitions, Ferroelectrics
Adres publiczny
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