Effects of (La, Sr) co-doping on electrical conduction and magnetic properties of BiFeO<sub>3</sub> nanoparticles

Effects of (La, Sr) co-doping on electrical conduction and magnetic properties of BiFeO₃ nanoparticles

Liu Li¹, Wang Shouyu^{1, †,}, Yin Zi¹, Liu Weifang², Xu Xunling², Zhang Chuang¹, Li Xiu¹, Yang Jiabin¹

UV–vis absorbance of La_0.1Bi_0.9−xSr_xFeO_y (x = 0, 0.2, 0.4) nanoparticles. The lower inset depicts the (αhν)² versus hν plot of all nanoparticles, where the intercept of the extrapolated absorption edge on the energy scale (x axis) gives the band gap of the nanoparticles. The upper inset is a schematic diagram of a possible mechanism for the electronic energy band.