Fyzikální ústav Akademie věd ČR

Seminar Friday, 8 October 2010 - 13:00 - 15:00

Speakers: Dr. Marina Tjunina (University of Oulu)
Place: Fyzikální ústav AV ČR, Pod vodárenskou věží 1, Praha 8, room 117
Organisers: Division of optics
Presented in English

Theoretically suggested concept of inducing or enhancing ferroelectric polarization in epitaxial strained films of perovskite structure oxides has been dominating over more than a decade. Unexpectedly, strain induced or enhanced relaxor behavior with the short-range polar order is often observed instead of the ferroelectric order.  In attempt to resolve this contradiction, we study epitaxial films of quantum paraelectrics, ferroelectrics, and relaxors. Recent results will be presented and discussed.