Magneto-electric Behaviors of La_0.67-xNd_xSr_0.33MnO₃ System

The magneto-electric behaviors of La_(0.67-x)Nd_xSr_(0.33)MnO_3 system were studied by the measurement of M-T curve,ESR curve,infrared spectra,Raman spectra,p-T curve and MR-T curve of the La_(0.67-x)Nd_xSr_(0.33)MnO_3 system(x=0.00,0.10,0.20,0.30,0.40).The experiment result shows that with the Nd doping increasing,the magnetic structure of the system transforms from the long-range ferromagnetic order to spin cluster glass state;for the samples with x=0.30 and 0.40,the phase separation occurs at the temperature high above T_c;The transport property exhibits change with the Nd doping increasing.Magneto-electric behaviors of the system and CMR effect attributes to lattice effect and interface tunneling effect relating to the spin.