DEPOLARIZATION FIELD AS A DRIVING-FORCE OF FATIGUE IN PZT FERROELECTRIC THIN-FILMS

Authors
LEMANOV VV YARMARKIN VK
Citation
Vv. Lemanov et Vk. Yarmarkin, DEPOLARIZATION FIELD AS A DRIVING-FORCE OF FATIGUE IN PZT FERROELECTRIC THIN-FILMS, Ferroelectrics, 201(1-4), 1997, pp. 55-64
Citations number
15
Categorie Soggetti
Physics, Condensed Matter","Material Science
Journal title
Ferroelectrics → ACNP
ISSN journal
00150193
Volume
201
Issue
1-4
Year of publication
1997
Pages
55 - 64
Database
ISI
SICI code
0015-0193(1997)201:1-4<55:DFAADO>2.0.ZU;2-Q
Abstract
A study has been made of the dependence of switched charge in ferroele ctric lead-zirconate-titanate films on the number of polarization reve rsal cycles produced by bipolar voltage pulses of fixed amplitude and duration under variation of their repetition rate. The film fatigue in the polarization switching frequency range studied (100 Hz - 100 kHz) has been shown to be dominated by the depolarization field caused by the presence in the near-electrode film regions of a pyrochlore-struct ure nonferroelectric phase.