Figure 3From: Intriguing photo-control of exchange bias in BiFeO3/La2/3Sr1/3MnO3 thin films on SrTiO3 substrates Magnetoresistance of BFO/LSMO thin film under the illumination of light. Magnetoresistance curves R(H) of BFO/LSMO thin films at 25 K after −1 T FC under light illumination at (a) λ = 630 and (b) λ = 460 nm. For comparison, R(H) curves under dark conditions are superposed in both (a) and (b).Back to article page