Hyperfine interaction of 155Gd in gadolinium iron garnet

Abstract The NMR spectrum of the polycrystalline sample of gadolinium iron garnet enriched by 155Gd isotope (91.6%) was detected. The interpretation of this spectrum consisting of 12 lines gives the values of electric field gradient (EFG) tensor, isotropic part and anisotropic components of hyperfine field on 155Gd nuclei. NMR measurements were accompanied by the ab initio calculations of the EFG tensor.