Anisotropic p-f mixing mechanism explaining anomalous magnetic properties in Ce monopnictides. VI. f-f interaction via p-f mixing

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Abstract
For pt.V see ibid., vol.18, p.2745 (1985). The indirect f-f interaction derived from fourth-order perturbation theory with respect to the p-f mixing is calculated using the valence bands obtained by the APW bands calculations. The type of the f-f interactions is described as the coupling through the symmetry exchange under the cubic crystal field, which cannot be written as a simple bilinear type of 4f spin operator. It is necessary to consider the short-range-ordering effect as well as the nonlinear effect of the p-f mixing to explain the fact that a type-I antiferromagnetic ordering is established by the second-order transition in CeBi.

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