Materials Chemistry and Physics, Vol.100, No.1, 60-67, 2006
Generation of high spin state in the spinel Co3O4 nano-domains through interfacial induction
The heterogeneous complex oxide, (1 - x)La-xSr-Co oxides (0.8 <= x <= 0.99), is observed to possess soft ferromagnetic behaviour at ambient temperature, whereas the corresponding perovskite La1-xSrxCoO3-delta solid solution no longer owns magnetic trait at the same temperature. This complex oxide comprises primarily of spinel Co3O4 phase, cubic SrO phase and perovskite La1-alpha,Sr alpha CoO3-beta (alpha <