Abstract
The temperature dependence of the uniform susceptibility near the Néel temperature in the paramagnetic region is discussed in the context of the self-consistent renormalization theory for weakly ferro- and antiferromagnetic metals. The self-consistent equations for the uniform susceptibility and the staggered susceptibility are solved simultaneously with the assumption that both of the ferromagnetism and the antiferromagnetism are close to the instability. It is found that the sign of the temperature derivative of the uniform susceptibility near the Néel point is determined by the relation between the coupling constants among spin fluctuation modes, similar to the condition of the coexistence of the two ordering modes with symmetry breaking.
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