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We investigate the effects of the mean free path on the spin susceptibility of almost ferromagnetic metals. Using these results, we calculate the low-temperature specific-heat contribution of the spin fluctuations. While the term linear in temperature T is unaffected by the mean free path, we find that the T³ ln T contribution is rapidly modified by impurities, in contrast to the phonon case.
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Fulde et al. (1968) studied this question.
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