Polar domains in lead titanate films under tensile strain

Catalan, G. and Janssens, A. and Rispens, G. and Csiszar, S. and Seeck, O. and Rijnders, G. and Blank, D. H. A. and Noheda, B. (2006) Polar domains in lead titanate films under tensile strain. Physical Review Letters, 96. pp. 127602-127606. DOI 10.1103/PhysRevLett.96.127602

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Abstract

Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crystal substrates of DyScO3. The films, of only 5 nm thickness, grow fully coherent with the substrate, as evidenced by synchrotron x-ray diffraction. A mapping of the reciprocal space reveals intensity modulations (satellites) due to regularly spaced polar domains in which the polarization appears rotated away from the substrate normal, characterizing a low-symmetry phase not observed in the bulk material. This could have important practical implications since these phases are known to be responsible for ultrahigh piezoelectric responses in complex systems.

Item Type: Article
Uncontrolled Keywords: 2006 AREP 2006 P IA50
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Physical Review Letters
Volume: 96
Page Range: pp. 127602-127606
Identification Number: 10.1103/PhysRevLett.96.127602
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:01
Last Modified: 23 Jul 2013 10:01
URI: http://eprints.esc.cam.ac.uk/id/eprint/194

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