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Multimode scanning probe images of BDFO thin film: (a) topography and magnetic domain imaging using MFM and (b) topography and piezoresponse imaging using PFM. The image shows unambiguously the ferroelectric writing performed by the poling voltages and the existence of remnant polarization after the poling voltages were switched off.
(a) Effect of dc magnetic field on ferroelectric hysteresis loop of BDFO thin film. (b) Effect of electric field on ferroelectric hysteresis loop of BDFO thin film.
Topography and magnetic domain imaging using MFM at different applied voltages for BDFO thin film.
curve obtained for BDFO thin film.
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