Planar electrode piezoelectric force microscopy to study electric polarization switching in BiFe O3

P. Shafer*, F. Zavaliche, Ying-hao Chu, P. L. Yang, M. P. Cruz, R. Ramesh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Piezoelectric force microscopy has been enhanced by coplanar epitaxial electrodes to detect and manipulate the striped ferroelectric domain structure of a multiferroic BiFe O3 thin film grown on single-crystalline DySc O3. Time-resolved imaging revealed ferroelastic (71° and 109°) switching of domains in a needlelike region that grew from one electrode toward the other in a uniform electric field, and demonstrated reversible rotation of the 71° domain stripe orientation in a nonuniform field. Purely ferroelectric (180°) switching was suppressed by the geometry of the electrodes. The extendibility of this apparatus opens the door toward magnetoelectric domain imaging.

Original languageEnglish
Article number202909
JournalApplied Physics Letters
Volume90
Issue number20
DOIs
StatePublished - May 2007

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