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Interplay of Octahedral Tilts and Polar Order in BiFeO 3 Films
Author(s) -
Kim YoungMin,
Kumar Amit,
Hatt Alison,
Morozovska An.,
Tselev Alexander,
Biegalski Michael D.,
Ivanov Ilya,
Eliseev Eugene A.,
Pennycook Stephen J.,
Rondinelli James M.,
Kalinin Sergei V.,
Borisevich Albina Y.
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.201204584
Subject(s) - ferroelectricity , metastability , materials science , polar , polarization (electrochemistry) , octahedron , condensed matter physics , order (exchange) , phase (matter) , pyroelectricity , engineering physics , chemical physics , crystallography , optoelectronics , crystal structure , physics , chemistry , quantum mechanics , finance , dielectric , economics
Heterointerface stabilization of a distinct nonpolar BiFeO 3 phase occurs simultaneously with changes in octahedral tilts. The resulting phase arises via suppression of polarization by a structural order parameter and can thus be identified as anti‐ferroelectric (Fe displacements – bottom panel). The phase is metastable and can be switched into a polar ferroelectric state (top panel) under an applied electric bias.