Magnitude and direction of hyperfine fields for a Cd impurity in Ni at low and high magnetizing fields

Using DPAC the magnitude and spatial distribution of the hyperfine field for Cd-impurities in Ni metal is studied as a function of magnetizing field up to 5.5 T for polycrystal and single crystal samples. Above 0.07 T magnetizing field, no indication is found of any deviation of the hyperfine field direction with respect to the applied field. The local field is found to be constant (?6.69 (3) T) below saturation and then decrease linearly with applied field.