Repozytorium
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Kolekcje
Inne
High-pressure dielectric studies of a novel hydrogen-bonded ferroelectric (NH4)2H2P2O6.
Autorzy
Rok wydania
2012
Czasopismo
Journal of Physics and Chemistry of Solids
Numer woluminu
73
Strony
953-956
DOI
10.1016/j.jpcs.2012.03.006
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The hydrostatic pressure effect on the dielectric properties of (NH4)2H2P2O6 ferroelectric crystal was studied for pressures from 0.1 MPa to 360 MPa and for temperatures from 100 to 190 K. The pressure–temperature phase diagram obtained is linear with increasing pressure. The paraelectric–ferroelectric phase transition temperature decreases with increasing pressure with the pressure coefficient dTc/dp=−5.16×10−2 K MPa−1. Additionally, the pressure dependences of Curie–Weiss constants for the crystal in paraelectric (C+) and ferroelectric (C−) phases are evaluated and discussed. The possible mechanism of paraelectric–ferroelectric phase transition is also discussed.
Słowa kluczowe
C. High pressure, D. Phase transitions
Adres publiczny
https://doi.org/10.1016/j.jpcs.2012.03.006
Strona internetowa wydawcy
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