Nuclear magnetic resonance of dilute magnetic alloys

The aim of this work is to interprete the influence of charge density oscillations and/or spin density oscillations on the line shape and line width of the NMR principal line by computer simulations (Monte-Carlo method); and to determine characteristic constants (e.g. the coupling constant of the 3d impurities to the conduction band electrons). The computer calculation gives the distribution function and the NMR signal of the space dependent perturbation of homogeneously distributed doping atoms on the probe nuclei in consideration. The space dependence and the amplitude of the perturbation are taken into account in the computer program by theoretical expressions for the asymptotic and presymptotic behaviour of the spin density or charge density oscillations or in other words for the electric and magnetic hyperfine fields. Therefore the experimental signals can be compared with theoretical result without the need of complicated parameter fits. These results are discussed for the alloys Cu-Co, Cu-Mn and Cu-Fe (class 2 alloys.). (orig.)