This phenomenon is exploited in the exchange bias technique, and the susceptibility of materials that exhibiting it behaves according to the Curie-Weiss law in the paramagnetic regime.
Since this phenomenon occurs when the separation scale is on the order of about 4 angstroms, it displays the limitations of the Bethe-Slater curve, which predicts the opposite behavior. Like a similar phenomenon, its susceptibility curve is non-differentiable at a critical point, at which a spontaneous sublattice moment develops. This phenomenon is exploited in the exchange bias technique, and the susceptibility of materials that exhibiting it behaves according to the Curie-Weiss law in the paramagnetic regime. For ten points, identify this behavior which disappears above the Neel point, and in which neighboring magnetic domains align with spins pointed in opposite, rather than the same, directions.
Since this phenomenon occurs when the separation scale is on the order of about 4 angstroms, it displays the limitations of the Bethe-Slater curve, which predicts the opposite behavior.
antiferromagnetism