PECULIARITIES OF PHASE TRANSITIONS IN PBFE0.5NB0.5O3
Yu.Zakharov1, L.Pustovaya1, K.Abdulvakhidov1, Yu.Kabirov1, R.Kolesova1, M.Kupriyanov1, R.Skulski2, Z.Surowiak2.
1Rostov University, 5
Zorge, Rostov-on-Don, 344090, Russia
2Silesian University,
2 Sniezna, Sosnowiec, 41-200 Poland
The peculiarities of the structure changes and the properties of lead ferroniobate (PFN) crystals and ceramics are investigated in the wide temperature and frequence ranges. The results of dielectric, pyroelectric studies in various temptratures are also presented. Structural measurments, as well as other physical measurments, shows
This phenomena may be considered as an indication of the formation of metastable polarization regions in PFN crystals which are typical for ferroelectric relaxors.