Periodic nanodomains in PbTiO3 films under tensile strain

Noheda, B. and Vlooswijk, A. and Janssens, A. and Catalan, G. and Rijnders, G. and Blank, D. H. A. (2008) Periodic nanodomains in PbTiO3 films under tensile strain. In: Applications of Ferroelectrics, 2008. ISAF 2008. 17th IEEE International Symposium on the.

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In epitaxial ferroelectric thin films under tensile strain, a transition from 180° domains to 90° domains can be achieved by increasing the film thickness. In many cases, the 90° a/c domains appear in the form of wide c-domains separated by narrow a-stripes. We have deposited thin films of PbTiO3 on DyScO3 substrates and show that the condition of horizontal coherence forces the a-domains to adopt discrete sizes, the smallest of which is substrate-independent and depends only on the tetragonality of the ferroelectric film. Growing PbTiO3 on DyScO3, we have achieved the narrowest (6 nm) possible a-domains, as well as the shortest periodicity that allows to maintain the lateral coherence in the film.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: 08AREP; IA57;
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Volume: 3
Page Range: pp. 1-2
Identification Number:
Depositing User: Sarah Humbert
Date Deposited: 27 May 2009 08:35
Last Modified: 23 Jul 2013 09:54

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