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Spatially Resolved Mapping of Polarization Switching Behavior in Nanoscale Ferroelectrics
Author(s) -
Rodriguez B. J.,
Jesse S.,
Alexe M.,
Kalinin S. V.
Publication year - 2008
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.200700473
Subject(s) - materials science , piezoresponse force microscopy , ferroelectricity , lead zirconate titanate , nanoscopic scale , polarization (electrochemistry) , nanoparticle , nanometre , optoelectronics , nanotechnology , dielectric , composite material , chemistry
The spatial variability of polarization switching in ferroelectric lead zirconate‐titanate nanoparticle arrays and within a single sub‐100 nanometer nanoparticle is investigated by using switching spectroscopy piezoresponse force microscopy. Strong variations of switching properties within a single nanoparticle are observed and attributed to polarization pinning by geometric effects and interfacial dislocations. The spatial distributions of imprint bias and the thickness of the frozen polarization layer within the nanoparticle are reconstructed.