I want calculate Hopfield parameter from DOS analysis. But I do not know how to do so. for this I do not know how to calculate free dos scatter (Nl) and scattering phase shift from dos analysis. Please can any one explain this!
All quantities such as density states at fermi level, free scatterer DOS, l-th component density state and fermi energy can be retrieved from DOS calculation. But how can I find scattering phase shift? Do I have to use "Quad Schem"?