The magnetic structures of metallic samarium have been determined from neutron-diffraction data on a single crystal of ¹⁵⁴Sm. Anomalies in a number of physical properties of this metal at 106 and 13.8^∘{}K are associated with ordering of the moments on the hexagonal and cubic sites, respectively. The unusual form factor expected for a 4f⁵ configuration has been observed. Striking evidence for important conduction-electron polarization effects has been found.
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Koehler et al. (1972) studied this question.
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