Application of NMR to Transition Metals and Their Alloys

Impurity Scattering in Dilute Silver Alloys

“…Using the procedure of Alfred and van Ostenburg 21 to estimate the higher (l^ 3) phase shifts, we find that these contribute -0.4 to the Friedel sum, bringing our Friedel sum (3 -2.8) into good agreement with Blatt's result. Our impurity phase shifts are in qualitative agreement with the results of calculations by Blatt, 17 based on a square -well model of the impurity potential, and by Alfred and van Ostenburg, 18 based on an interpretation of NMR data.…”