TY - JOUR
KW - Multiferroics
KW - Nanotechnology
KW - Photovoltaic
KW - Ferroelectricity
KW - Electrostatic potentials
KW - Nanoscale
KW - Photovoltaic effects
KW - Scanning probes
KW - Domain boundary
KW - Conductive AFM
KW - Current voltage
KW - Domain structure
KW - Electrode spacing
KW - I-V measurements
KW - Mesoscopics
KW - Photovoltages
KW - Polarization direction
KW - Stripe domain
AU - J Seidel
AU - S.-Y Yang
AU - E Alarcón-Lladó
AU - Joel W Ager
AU - Ramamoorthy Ramesh
AB - 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.
BT - Ferroelectrics
DO - 10.1080/00150193.2012.678156
LA - eng
M1 - 1
N1 - cited By 20
N2 - 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.
PY - 2012
SP - 123
EP - 126
T2 - Ferroelectrics
TI - Nanoscale probing of high photovoltages at 109 domain walls
VL - 433
SN - 00150193
ER -