A NEW PHENOMENOLOGICAL APPROACH TO THE MAGNETISM OF RANDOMLY MIXED ANTIFERROMAGNETS WITH COMPETING SPIN ANISOTROPY

[摘要] We propose a simple but useful phenomenological approach to the magnetism of randomly mixed antiferromagnets with competing spin anisotropies. The model is a two-sublattice model including angular variation of magnetic moments M +/- on two sublattices. Using this model we have derived the magnetic resonance frequencies, M - H curves and so on. We also have applied this model to the experimental results on CsMn(1-x)Co(x)Cl3.2H2O and we have determined the anisotropy parameters in M +/- for the mixed antiferromagnet.

[发布日期] 1990-12-01

[效力级别]  Proceedings Paper