Magnetisation and AC susceptibility studies of La1−xSrxFe0.8Cr0.2O3−δ (0.0<x<1.0) perovskites

Magnetisation and AC magnetic susceptibility measurements have been performed in the perovskite-type compounds La1−xSrxFe0.8Cr0.2O3−δ (x=0.2, 0.4, 0.6 and 0.8). All compounds show an overall antiferromagnetic behaviour mainly attributed to predominant Fe3+-O-Fe3+ interactions. For 0.2