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Labile Ferroelastic Nanodomains in Bilayered Ferroelectric Thin Films
Author(s) -
Anbusathaiah Varatharajan,
Kan Daisuke,
Kartawidjaja Fransiska C.,
Mahjoub Reza,
Arredondo Miryam A.,
Wicks Samantha,
Takeuchi Ichiro,
Wang John,
Nagarajan Valanoor
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200803701
Subject(s) - materials science , ferroelectricity , piezoelectricity , thin film , heterojunction , electric field , piezoelectric coefficient , flexoelectricity , layer (electronics) , composite material , nanotechnology , optoelectronics , physics , quantum mechanics , dielectric
Bilayered Pb(Zr (1– x ) ,Ti x )O 3 ferroelectric thin film heterostructures show complex ferroelastic nanodomain patterns. These ferroelastic nanodomains exist only in the upper layer, and hence are able to move under the application of an external electric field. Quantitative analysis reveals an enhanced piezoelectric coefficient of ≈220 pm V −1 , rendering them attractive for a variety of electromechanical devices.