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Kolekcje
Inne
Critical behaviour and the order parameter saturation in uniaxial ferroelectrics with the polar axes in and out of a crystallographic direction.
Autorzy
Rok wydania
2010
Czasopismo
Numer woluminu
83
Strony
768-781
DOI
10.1080/01411594.2010.509046
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The equations of state for two uniaxial systems: the first with the polar direction identical with one of the crystallographic axes and the second with the polar direction within a crystallographic plane giving a realistic Curie–Weiss constant ratio and the experimentally obtained non-classical critical exponents are used to describe the behaviours of spontaneous polarization and of the susceptibility. The theories are exemplified by the behaviour of molecular-ionic crystals (CH3NH3)5Bi2Cl11 (MAPCB), (CH3NH3)5Bi2Br11 (MAPBB) and (C3N2H5)5Bi2Br11 (IBB).
Słowa kluczowe
compressible model, scaling hypothesis, coupling, Curie–Weiss constant ratio
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