SEMIEMPIRICAL FITTING OF PARTIAL PAIR CORRELATION-FUNCTIONS OF AMORPHOUS-ALLOYS

A semi-empirical fitting procedure has been developed and used in anal ysing the characteristic features of the partial structure factors of binary amorphous alloys. An analytical formula is given to fit the exp erimental atomic pair correlation function as a sum of Gaussians. The inverse Fourier transform of the fitted terms reproduces all features of the experimental structure function. In addition to the structural parameters, the modelling gives a quantitative explanation for the com plex origin of characteristic features in the diffraction pattern such as pre-peak, pre-minimum, and split peaks in the partial structure fa ctor.