Nanoscale probing of high photovoltages at 109 domain walls

Publication Type
Journal Article
Authors
DOI
10.1080/00150193.2012.678156
Abstract
We report the direct observation of nanoscale photovoltaic current-voltage properties associated with directional steps of the electrostatic potential at 109 domain walls in ferroelectric BiFeO 3 thin films with highly ordered ferroelectric stripe domains. The unidirectional photovoltaic effect along the net-in-plane polarization direction is shown to exhibit anomalies at the micro-and nanoscale due to local differences in mesoscopic domain structure. Very high initial photovoltages for small electrode spacings are observed using a conductive AFM tip as one of the electrodes in photovoltaic I-V measurements. © 2012 Taylor & Francis Group, LLC.
Notes
cited By 20
Journal
Ferroelectrics
Volume
433
Year of Publication
2012
Number
1
Pagination
123-126
ISSN Number
00150193
Keywords
Research Areas
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