1. Electrical conduction at domain walls in lead titanate (PbTiO3) single crystals
- Author
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Jan Seidel, Zewu Yan, and Nastaran Faraji
- Subjects
Materials science ,Physics and Astronomy (miscellaneous) ,Condensed matter physics ,Nanotechnology ,02 engineering and technology ,Conductive atomic force microscopy ,021001 nanoscience & nanotechnology ,01 natural sciences ,Ferroelectricity ,chemistry.chemical_compound ,Piezoresponse force microscopy ,Domain wall (magnetism) ,chemistry ,Electrical resistivity and conductivity ,0103 physical sciences ,Lead titanate ,010306 general physics ,0210 nano-technology ,Nanoscopic scale ,Single crystal - Abstract
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. more...
- Published
- 2017
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