Abstract

To estimate the Stoner (Landau) enhancement factor F for 4d and 5d transition metals, one should single out χ spin from the observed susceptibility at 0 K., χ (0 K). For that purpose one needs either to evaluate theoretically or to determine experimentally χ orb and χ sp-orb. Such a procedure is not quite well defined except for Knight-shift experiments and causes ambiguity. Here we adopt, as a very crude estimate, χ (OK) for x spin; the results for F calculated from the values of) γ ob,χ (OK) and λ are listed in Table 1. It is concluded that, within the above-mentioned uncertainty, Os and Ru are in the weakly paramagnetic region, Pd is in the nearly ferromagnetic region and others are intermediate.

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