DETERMINATION OF MUFFIN-TIN POTENTIAL BY XANES

A scheme of the MT-potential construction by using experimental data i s proposed. It is based on the inverse problem solution in the theory of many-centre shape resonances. Input data are positions E-i and widt hs T-i of maxima in XANES corresponding to shape resonances The MT pot ential within atomic spheres is considered in the form V-at (r) + Sigm a(n) a(n) r(n) where V-at is a given atomic potential, and the coeffic ients a(n) are chosen so that calculated and experimental characterist ics of resonances are close at most.