Figure 4
From: Intriguing photo-control of exchange bias in BiFeO3/La2/3Sr1/3MnO3 thin films on SrTiO3 substrates
Intensity and wavelength dependent resistance, exchange bias, and coercive field of BFO/LSMO thin film. Light intensity dependence of (a) resistance R(H X), (b) exchange bias field H E, and (c) coercive field H C for λ = 630 nm (red spheres) and 460 nm (blue spheres). In (a), (b), and (c), corresponding values under dark conditions (black spheres) are superposed for comparison.