Magnetism of a “Nuclei Plus Electrons” System. II — Numerical Analyses —

抄録

The results of the preceding paper on a combined system of nuclear spins and electron spins are analyzed numerically in the Weiss approximation at the “electronic region” (2\barJ⁄D>1) as well as the “nuclear region” (2\barJ⁄D<1). The Curie temperature and the electron spin polarization at T=0 K are smoothly continuous against 2\barJ⁄D, but change steeply across threshold condition 2\barJ⁄D=1. Some peculiar features are found in temperature dependence of the electron spin and of the nuclear spin polarizations and in the “nuclear” specific heat, particularly when 2\barJ⁄D is close to unity.