Electrical conduction at domain walls in lead titanate (PbTiO3) single crystals

The nanoscale electrical conduction behaviour of single crystal lead titanate (PbTiO3) is investigated. Piezoresponse force microscopy measurements show 180° ferroelectric domains on the surface of the mm-sized crystals that are electrically switchable with tip voltages of the order of ∼10 V. Electr...

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Veröffentlicht in:Applied physics letters 2017-05, Vol.110 (21)
Hauptverfasser: Faraji, N., Yan, Z., Seidel, J.
Format: Artikel
Sprache:eng
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Zusammenfassung:The nanoscale electrical conduction behaviour of single crystal lead titanate (PbTiO3) is investigated. Piezoresponse force microscopy measurements show 180° ferroelectric domains on the surface of the mm-sized crystals that are electrically switchable with tip voltages of the order of ∼10 V. Electrical conductivity at domain walls in these crystals was observed using conductive atomic force microscopy. Naturally occurring 180° domains exhibit current flow along the delineating domain wall. The domain wall current flow shows Schottky-like rectifying behaviour.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4983642