THE ROLE OF THE G-FACTOR IN THE MAGNETISM OF RARE-EARTH INTERMETALLICS

In previous papers, we have proposed reduced-level models in which we retain in the model Hamiltonian only the two lowest levels of the crys tal field splitting scheme of a rare-earth ion in rare-earth intermeta llics. This approach yields a simple analytical state equation, from w hich we may determine the value of the g-factor and molecular field pa rameter (lambda). In this work we use a full model to study the sponta neous magnetization vs temperature of PrAl2, using the values of g and lambda obtained through a reduced model.