Spin--spin interaction interpretation of results in Zn--Mn

A crystal field interpretation of susceptibility paramagnetic resonance and specific heat results in Zn--Mn is suggested as not consistent and ion--ion interactions are postulated to more readily account for observed behavior. Using a spin--spin interaction model, the exchange was found to be both anisotropic and dependent on more than ion first-nearest-neighbor interactions alone.Cluster contributions are found in both the specific heat and susceptibility