Pregled bibliografske jedinice broj: 39924
Model for paramagnetic probe in hydrogen bonded ferroelectric
Model for paramagnetic probe in hydrogen bonded ferroelectric // Fizika A, 8 (1999), 4; 229-238 (podatak o recenziji nije dostupan, članak, znanstveni)
CROSBI ID: 39924 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Model for paramagnetic probe in hydrogen bonded ferroelectric
Autori
Merunka, Dalibor ; Rakvin, Boris
Izvornik
Fizika A (1330-0008) 8
(1999), 4;
229-238
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
hydrogen bonded ferroelectric; paramagnetic defect; SeO43- probe
Sažetak
The modified strong dipole-proton coupling model and Monte Carlo calculation are employed to describe paramagnetic defect in hydrogen bonded ferroelectric. In this model, probe is treated as ``soft" dipole impurity in the system with N = 108 dipoles. The effective double-well type potential of the probe is obtained and its temperature dependence in the paraelectric phase is studied. It is shown that the experimentally detected activation energy of the polarization fluctuation of the SeO43- probe can be related to the effective activation energy. The model is compared with the earlier proposed local ``pseudo freeze-out" model which exhibits larger deviation from the experimental results than the suggested modified strong dipole-proton coupling model.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
