Magnetism of dilute Fe ions in solid and liquid Hg: Is it governed by the interaction of Fe 3dwith Hg 5dband electrons?

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Abstract
By applying the perturbed-γ-ray-distribution method following heavy-ion reactions we have observed strong magnetic moments for isolated Fe ions in solid and liquid Hg reflecting a Curie-type local susceptibility along with a small Fe spin-fluctuation rate. The magnetism of Fe ions in Hg exhibits qualitative differences to the behavior of Fe in sp band metal hosts but is strikingly similar to the magnetism of Fe in hosts with d- band electrons, including Cu, Ag, and Au. We propose that the interaction of Fe 3d with Hg 5d band electrons is crucial for the existence and stability of Fe moments in Hg.