Electronic Structure and Magnetism of CuNi Coherent Modulated Structures

The electronic and magnetic properties of a coherent modulated structure consisting of three atomic layers each of Cu and Ni perpendicular to [111] were determined from ab initio self-consistent spin-polarized energy-band calculations. We predict a substantial reduction in spin magnetization and contact hyperfine fields $H_n$ at the Ni layers (in contrast with enhancements reported earlier from ferromagnetic resonance measurements), charge (${0.1\mathit{e}}^{-}$) and spin (∼0.01${\mathrm{\mu }}_{\mathrm{B}}$) transfer to the Cu sites, and large $H_n$ at the Cu nuclei.