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Functional Perovskites – From Epitaxial Films to Nanostructured Arrays
Authors:Ionela Vrejoiu  Marin Alexe  Dietrich Hesse  Ulrich Gösele
Affiliation:Max Planck Institute of Microstructure Physics Weinberg 2, 06120 Halle (Germany)
Abstract:Functional perovskite materials gain increasing significance due to their wide spectrum of attractive properties, including ferroelectric, ferromagnetic, conducting and multiferroic properties. Due to the developments of recent years, materials of this type can conveniently be grown, mainly by pulsed laser deposition, in the form of epitaxial films, multilayers, superlattices, and well‐ordered arrays of nanoislands. These structures allow for investigations of preparation–microstructure–property relations. A wide variation of the properties is possible, determined by strain, composition, defect contents, dimensional effects, and crystallographic orientation. An overview of our corresponding work of recent years is given, particularly focusing on epitaxial films, superlattices and nanoisland arrays of (anti)ferroelectric and multiferroic functional perovskites.
Keywords:ferroelectrics  nanostructures  perovskites  piezoelectrics  thin films
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