Nuclear Zeeman effect of¹¹⁹Sn dissolved in chromium

Mossbauer effect measurements on recoilless emission from 119 Sn nuclei dissolved in chromium show that, at temperatures below the Néel temperature of chromium, a distribution of hyperfine fields acts on the tin nuclei. The observations are consistent with the assumption that the hyperfine field distribution results from a linear spin-density wave polarization which in chromium is incommensurate with the lattice. For a commensurate spin-density wave polarization it is expected that a constant magnitude hyperfine field acts on the 119 Sn nuclei. This expectation is confirmed by Mössbauer measurements on 119 Sn nuclei in 0.8 wt% MnCr alloy at a temperature at which a commensurate magnetic structure exists.