TDPAC study of amorphous alloys Pd0.8Si0.2 and Pd0.75Si0.20Ag0.05

The amorphous alloys Pd_0.8Si_0.2 and Pd_0.75Si_0.20Ag_0.05 have been studied by the time differential perturbed angular correlation method. A broad EFG distribution with a relative width of 0.48–0.51 was sensed by the probe nuclei¹¹¹Cd for both the amorphous alloys. The unique quadrupole interaction frequencies were observed after annealing above the phase transition temperature. The observed broad distribution of the EFG implies that the crystallographic structure of the amorphous alloys is characterized by short-range order and long-range disorder, which is in accord with the continuous random model.