Spin canting

Magnetic materials possess magnetism due to spin magnetic moment and orbital magnetic moment of electrons. Spin magnetic moment contributes more to magnetism. There are three types of magnetic materials- diamagnetic, paramagnetic and ferromagnetic. Diamagnetic materials opposes applied magnetic field and possess negative magnetic susceptibility. Paramagnetic materials possess low values of positive magnetic susceptibility and ferromagnetic materials possess large values of positive magnetic susceptibility. Ferromagnetic materials can be in ferro, ferri or in antiferro form. In such materials there exist magnetic lattice and sublattices. It’s a fact that intra-sublattice interactions are weaker than the inter-sublattice interactions. Antiferromagnetic materials with body centered cubic crystal symmetry can have canted spin arrangement. Here the magnetization in four magnetic sub lattices is not parallel to the molecular field.