Electrical and Magnetic Properties - Structure Correlation on Nd0.65Sr0.35Mn1-XFeXO3

The present paper deals with studying the magnetic and the electrical
properties - structure correlation of compounds under investigation:
Nd0.65Sr0.35FexMn1-xO3 (x = 0.2, 0.4, 0.6 and 0.8). All samples are prepared
using standard solid state reaction method and tested using X-ray and neutron
diffraction. They have orthorhombic distortion perovskite-like structure of
space group Pnma. It is found that the activation energy is directly proportional
to the volume of unit cell. The crystal structure does not change with changing
the concentration of iron where all the samples have the same space group. The
transition from the pure ferromagnetic ordering into the non-collinear ordering
(weak ferromagnetic) occurs at 520K for Nd0.65Sr0.35Fe0.6Mn0.4O3.