Journal
PHYSICAL REVIEW B
Volume 73, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.73.184127
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Combined theoretical and experimental studies of self-assembled multiferroic nanostructures in epitaxial films reveal the dominant role of elastic interactions, caused by epitaxial stresses, in defining the morphology of the nanostructures. The phase field model, which considered the individual phases in the film as elastic domains, has predicted successfully the complex morphologies observed in epitaxial multiferroic CoFe2O4-PbTiO3 films grown on SrTiO3 substrates with {001}, {110}, and {111} orientations. It is shown that nanostructures containing isolated magnetic nanorods in a ferroelectric matrix or vice versa can be obtained by varying the substrate orientation and phase fraction.
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