Probing the SmRhSn magnetic state by AC/DC magnetic measurements and 119Sn Mössbauer spectroscopy

Bulk magnetic AC and DC susceptibility studies have been performed on a polycrystalline SmRhSn sample. The measurements revealed ferromagnetic ordering with a Curie temperature of TC = 14.9(2) K. However, additional magnetic transitions have been found. The thermal variation of the hyperfine parameters has been studied in detail by 119Sn Mössbauer spectroscopy. The distribution of magnetic hyperfine fields observed at the tin sites points to a rather complicated magnetic structure of probably non-collinear character but with the magnetic samarium moments arranged in directions close to the ab-basal plane.

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► Complicated magnetic ordering of polycrystalline SmRhSn at low temperatures.
► Several magnetic transitions found and the Curie temperature TC = 14.9(2) K.
► Samarium magnetic moments arranged close to the ab-basal plane.