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Dynamics of ferroelectric domains in (CH3NH3)5Bi2Br11 studied by liquid crystal decoration technique.
Autorzy
Rok wydania
1990
Czasopismo
Numer woluminu
106
Strony
57-62
DOI
10.1080/00150199008214559
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Abstract The switching process in (NH3CH3)5Bi2Br11 single crystals was investigated using nematic liquid crystal decoration technique. Polarization reversal measurements were carried out in the dc electric fields up to 1200 V/cm and within the temperature range from 296 to 308 K. It was found that the time of total switching τS obeys the following exponential law: 1/τs=1/σexp (−α/E). Two, or three linear parts on the In(l/τ) vs. 1/E plots with various activation fields were observed…
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