One important constant describing these materials is proportional to the square of the Lande g-facto
One important constant describing these materials is proportional to the square of the Lande g-factor and the Bohr magneton times J times J plus 1. Molecular orbital theory is required to show that diatomic oxygen is one of these materials, and one law describing these materials contain an additional theta term describing exchange interactions. The Neel-Arrhenius law describes the "super" version of this property, which occurs in ferrofluids, and these materials obey the Curie-Weiss law. For 10 points, name these materials characterized by a magnetic susceptibility greater than 1, which become magnetised only in response to an external field.
One important constant describing these materials is proportional to the square of the Lande g-factor and the Bohr magneton times J times J plus 1.
{Paramagnetism}