Structural study of superionic phase of AgI

Abstract

A detailed analysis of the X-ray scattering intensity of alpha -AgI has been carried out by an anomalous scattering technique. The two partial interference functions S_ij^dif(Q) for Ag-Ag and Ag-I pairs were estimated using the newly developed theoretical equations of the intensity. The partial distribution functions for I-I, Ag-I and Ag-Ag pairs in this work are consistent with the results obtained from molecular dynamics by Vashishta and Rahman (1978). The intensities of Debye lines were also explained satisfactorily in terms of pair distribution function for Ag-I pairs.