Magnetic properties of Cd-substituted copper ferrites

Magnetism in Cu1-xCdxFe2O4 ferrites (x = 0.0,0.1,0.2,0.3,0.4,0.5) was measured using an ac susceptibility technique and the vibrating sample magnetometer. The orientation of spins at octahedral and tetrahedral sites and Y-K angles have been measured. For samples having x = 0.0,0.1 and 0.2, the Y-K angle is measured to be zero and the samples follow Neel's collinear model. For samples having x = 0.2 a triangular spin arrangement on B-sites weaken the AB-interaction. Magnetic behaviour of these ferrite is predicted on the basis of the abovementioned observations.