Pressure dependence of the electric field gradient in Sb and Sb1−xM x (M=ln, Zn, Ge, Pb, Cd, Sn) at the site of111Cd

Using the111Cd-TDPAC (time differential perturbated angular correlation) method, the pressure dependence of the electric field gradient (EFG) in Sb and Sb1−xM x (M=ln, Zn, Ge, Pb, Cd, Sn) was investigated. The application of a phenomenological ansatz for the parametrisation of the pressure and temperature dependence of the EFG made it possible to combine temperature data gained in former studies [1], [2] with the pressure dependent data presented in this paper. The resulting pressure dependence of −2±0.2 MHz/kbar is shown to be independent of concentration and element of admixture. Results for the volume and explicit temperature dependence agree with existing information on the mixed system Sb1−xM x (M=ln, Zn, Ge, Pb, Cd, Sn); the investigation of the EFG in Sb1−x−yM x Pb y showed that the resulting EFG may be interpreted as the weighted sum of the individual contributions of the two metals.