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Phase Transitions, Phase Coexistence, and Piezoelectric Switching Behavior in Highly Strained BiFeO 3 Films (Adv. Mater. 39/2013)
Author(s) -
Beekman C.,
Siemons W.,
Ward T. Z.,
Chi M.,
Howe J.,
Biegalski M. D.,
Balke N.,
Maksymovych P.,
Farrar A. K.,
Romero J. B.,
Gao P.,
Pan X. Q.,
Tenne D. A.,
Christen H. M.
Publication year - 2013
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.201370249
Subject(s) - materials science , epitaxy , piezoelectricity , phase (matter) , condensed matter physics , phase transition , work (physics) , strain (injury) , nanotechnology , optoelectronics , composite material , thermodynamics , physics , organic chemistry , layer (electronics) , medicine , chemistry
A complex phase coexistence forms in epitaxial films of BiFeO 3 due to the effects of epitaxial strain and temperature‐induced stresses. The work by H. M. Christen and co‐workers on page 5561 shows that the stripe patterns that form upon cooling of these atomically flat layers are a prerequisite for piezoelectric switching, i.e., the phase coexistence enables the functionality of the material.