LaSrNiO4 spin excitationsLaSrNiO4自旋激发 NeutronandX-rayScatteringStudiesofSpin,ChargeandOrbitalOrderinTMOxides AndrewBoothroydDepartmentofPhysics,OxfordUniversity resistivitymagnetization Magnetization(emu/g)Resistance(Ohm)1010108106104102100 0 La5/3Sr1/3NiO4 50100150200250300Temperature(K)0.0060.0050.0040.003...