Numéro
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
Page(s) C2-169 - C2-170
DOI https://doi.org/10.1051/jp4/1997155
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure

J. Phys. IV France 7 (1997) C2-169-C2-170

DOI: 10.1051/jp4/1997155

Determination of Muffin-Tin Potential by XANES

Yu.F. Migal1, I.Ya. Nikiforov2 and I.V. Bazhin1

1  Dept. of Physics, Don State Technical University, Gagarin Sq. 1, Rostov-on-Don 344010, Russia
2  Dept. of Physics, Don State Technical University, Gagarin Sq. 1, Rostov-on-Don 344010 Russia


Abstract
A scheme of the MT-potential construction by using experimental data is proposed. It is based on the inverse problem solution in the theory of many-centre shape resonances. Input data are positions Ei and widths Γi of maxima in XANES corresponding to shape resonances. The MT potential within atomic spheres is considered in the form Vat(r)+∑n an rn where Vat is a given atomic potential, and the coefficients an are chosen so that calculated and experimental characteristics of resonances are close at most.



© EDP Sciences 1997