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Adv Mater. 2015 Mar 4;27(9):1615-8. doi: 10.1002/adma.201405205. Epub 2015 Jan 16.

Ferroelectric 180° domain wall motion controlled by biaxial strain.

Author information

1
Institute for Physics, Martin-Luther-University, Halle-Wittenberg, 06099, Halle, Germany; Institute for Metallic Materials, IFW Dresden, Postfach 270116, 01069, Dresden, Germany.

Abstract

180° domain wall motion in a tetragonal ferroelectric oxide is accelerated by an order of magnitude using in situ strain in a force microscope. Single-domain PbZr0.2 Ti0.8 O3 films on piezoelectric (001)-oriented 0.72PbMg1/3 Nb2/3 O3 -0.28PbTiO3 substrates allow for direct investigation of strain-dependent domain dynamics. The strain effect depends on the sign of applied field through strain-dependent electrode built-in potentials and a suggested charging of tilted walls.

KEYWORDS:

conductive domain walls; epitaxial strain; ferroelectric domain dynamics; piezoelectric substrates; piezoresponse force microscopy

PMID:
25594771
DOI:
10.1002/adma.201405205

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