简介:ThepolycrystallinesamplesofLa2/3Ca1/3MnO3werepreparedbyaconventionalsolidstatereactionmethod.Themagnetizations(ZFC,FCandinitialmagnetization)ofthepolycrystallineLa2/3Ca1/3MnO3weremeasuredwithsuperconductingquantuminterferencedevicemagnetometer.Thescalingtheorywasemployedtostudythechangesofcriticalbehaviorarisingfromtheappliedexternalfield.Thecriticalparameterβdecreaseswithincreasingtheexternalmagneticfieldresultsinanincreaseinthemagnitudeofferromagneticordering.