Study of Conduction Behavior in Co-doped Nd_(0.67)Sr_(0.33)Mn_(0.90)Co_(0.10)O_3 Manganite

摘要

We have studied the structural and conduction mechanism of Nd_(0.07)Sr_(0.33)Mn_(0.90)Co_(0.10)O_3 manganite prepared through conventional solid state reaction route. The synthesized sample is single phase in nature and crystallizes in orthorhombic perovskite structure with Pbnm space group which is confirmed with the study of X-ray diffraction data through Rietvield refinement. The resistivity versus temperature measurement for sample Nd_(0.07)Sr_(0.33)Mn_(0.90)Co_(0.10)O_3 was performed in the range 0-300K and at OT field. The conduction mechanism of the sample is analyzed and explained by different theoretical models, for temperatures below and above T_P.