A NEW STOCHASTIC OPTIMIZATION STRATEGY FOR QUANTITATIVE-ANALYSIS OF CORE-LEVEL PHOTOEMISSION DATA

A new procedure is presented for the curve-fitting of core level photo emission energy distribution curves. The algorithm described in this p aper is an exceptionally simple Evolutionary Strategy that is both fas t and robust. It presents a novel departure from conventional determin istic non-linear least-squares fitting techniques such as the Simplex, and the Levenberg-Marquard methods. A detailed description of the alg orithm is presented. The technique is demonstrated by applying it to t he curve-fitting of As 3d core level spectra obtained in synchrotron p hotoemission experiments. (C) 1998 Elsevier Science B.V. All rights re served.