Smallest 90 degrees domains in epitaxial ferroelectric films
- Vlooswijk, A. H. G.
- Noheda, Beatriz
- Catalan, G.
- Janssens, A.
- Barcones, B.
- Rijnders, G.
- Blank, D. H. A.
- Venkatesan, S.
- Kooi, B.
- de Hosson, J. T. M.
DOIAbstract
Periodic ferroelectric-ferroelastic 90 degrees domain patterns with an unprecedented small domain periodicity of 27 nm were observed in thin PbTiO3 films grown on DyScO3 substrates. These patterns contain the narrowest possible a domains (6 nm wide) that allow to preserve the lateral coherence in the films, producing highly ordered patterns visible by x-ray diffraction
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