119Sn Mِssbauer spectroscopy of the intermetallic compound HoRhSn

The powder X-ray diffraction data revealed that the structure of HoRhSn is isotypic with the hexagonal ZrNiAl type (space group P 6 ¯ 2 m ). Bulk magnetic AC and DC measurements have shown that this compound is ferromagnetic with a Curie temperature of TC = 6.3(2) K. The thermal variation of the hyperfine parameters has been studied in detail by 119Sn Mِssbauer spectroscopy. Especially, large 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 holmium moments arranged in directions close to the c-axis.