Low-frequency polarization relaxation in PMN + 2% Li2O ferroelectric ceramics in the region of diffuse phase transition

Autor: K. Bormanis, A. I. Burkhanov, Anna Kalvane, I. E. Tumanov
Rok vydání: 2013
Předmět:
Zdroj: Bulletin of the Russian Academy of Sciences: Physics. 77:1051-1053
ISSN: 1934-9432
1062-8738
DOI: 10.3103/s1062873813080078
Popis: Studies of dielectric nonlinearity in lead magnoniobate ceramics doped with lithium show that at a certain value of external field amplitude E, two peaks appear on the temperature dependences of effective dielectric permittivity ɛeff′(T). They are caused by the dynamics of the polar regions in the vicinity of diffuse phase transition and by variation in their volume under the action of field E.
Databáze: OpenAIRE