Local stabilisation of polar order at charged antiphase boundaries in antiferroelectric (Bi0.85Nd0.15)(Ti0.1Fe0.9)O3 | Zendy

Ian MacLaren | Zendy; LiQiu Wang | Zendy; O. G. Morris | Zendy; Alan J. Craven | Zendy; R. L. Stamps | Zendy; Bernhard Schaffer | Zendy; Quentin M. Ramasse | Zendy; Shu Miao | Zendy; Kambiz Kalantari | Zendy; Iasmi Sterianou | Zendy; Ian M. Reaney | Zendy

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Local stabilisation of polar order at charged antiphase boundaries in antiferroelectric (Bi0.85Nd0.15)(Ti0.1Fe0.9)O3

Author(s) -

Ian MacLaren,

LiQiu Wang,

O. G. Morris,

Alan J. Craven,

R. L. Stamps,

Bernhard Schaffer,

Quentin M. Ramasse,

Shu Miao,

Kambiz Kalantari,

Iasmi Sterianou,

Ian M. Reaney

Publication year - 2013

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4818002

Subject(s) - antiferroelectricity , materials science , boundary (topology) , polar , transmission electron microscopy , scanning transmission electron microscopy , phase boundary , condensed matter physics , phase (matter) , crystallography , ferroelectricity , chemical physics , molecular physics , dielectric , nanotechnology , optoelectronics , physics , chemistry , mathematical analysis , mathematics , quantum mechanics , astronomy

Observation of an unusual, negatively-charged antiphase boundary in (Bi0.85Nd0.15)(Ti0.1Fe0.9)O3 is reported. Aberration corrected scanning transmission electron microscopy is used to establish the full three dimensional structure of this boundary including O-ion positions to ∼±10 pm. The charged antiphase boundary stabilises tetragonally distorted regions with a strong polar ordering to either side of the boundary, with a characteristic length scale determined by the excess charge trapped at the boundary. Far away from the boundary the crystal relaxes into the well-known Nd-stabilised antiferroelectric phase

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