An epitaxial BiFeO_(3)/La_(0.7)Sr_(0.3)MnO_(3) (BFO/LSMO) multiferroic heterostructure is grown on an LaAlO_(3) (001) substrate by laser molecular beam epitaxy,and its photovoltaic properties are investigated.It is found that the photocurrent is significantly increased under illumination,and the short-circuit photocurrent has a linear relationship with the laser intensity.Furthermore,when the ferroelectric polarization of the BFO layer is switched,the short-circuit photocurrent and open-circuit voltage can be switched.These results are discussed by considering the contributions from the ferroelectric polarization and the electrode/film interface.
展开▼
