Figure 6From: Ferromagnetism and optical properties of La1 − xAl x FeO3 nanopowdersPlots of ( αhν )2as a function of photon energy of La 1 − x Al x FeO 3 nanopowders. (a) x = 0.0. (b) x = 0.1. (c) x = 0.3. (d) x = 0.5.Back to article page