Systematics of hyperfine interactions at Sn and other5s−5pdiamagnetic impurities in ferromagnetic MnSb

Mössbauer measurements on dilute ${}_{}{}^{119}{}_{}{}^{}\mathrm{Sn}$ impurities substituted for Sb in the ferromagnetic conductor MnSb were performed. The saturation hyperfine field at the tin site $H\left(0\mathrm{} \mathrm{K}\right)=-90\mathrm{}\pm 1$ kOe was determined. The temperature dependence of the hyperfine field departs significantly from that of the bulk magnetization. The electric field gradient $eq=(15\mathrm{}\pm 4)\times {10}^{17}$ V ${\mathrm{cm}}^{-2\mathrm{}}$ was measured and was found to be independent of temperature. The systematics of hyperfine fields at $5s-5p$ solutes in Fe, Co, Ni, and MnSb hosts are discussed.