Mechanism of switchable and nonswitchable short-circuit photocurrent accompanying polarization switching in Bi0.9La0.1FeO3thin filmsR. L. Gao, H. W. Yang, Y. S. Chen, J. R. Sun, Y. G. Zhao and B. G. ShenEPL, 105 3 (2014) 37008DOI: https://doi.org/10.1209/0295-5075/105/37008