  Analysis of extended X-ray absorption fine structure (EXAFS) data by the use
of sparse modeling is presented. We consider the two-body term in the n-body
expansion of the EXAFS signal to implement the method, together with
calculations of amplitudes and phase shifts to distinguish between different
back-scattering elements. Within this approach no a priori assumption about the
structure is used, other than the elements present inside the material. We
apply the method to the experimental EXAFS signal of metals and oxides, for
which we were able to extract the radial distribution function peak positions,
and the Debye-Waller factor for first neighbors.
