Orbital and spin contributions to magnetic hyperfine fields of tri-positive rare earth ions

摘要

An alternative approach in the estimation of the magnetic field generated by atomic current densities is presented and applied to both the orbital and spin magnetic hyperfine fields of tri-positive rare earth ions. The application of the formulae offered is tested on the free ions Dy3+, Er3+ and Yb3+ in their ground states. The estimated magnetic hyperfine fields are in full agreement with those found in the literature. Our calculated magnetic hyperfine fields produced in the ground states of Er3+ ion in Er2Ge2O7 and Yb3+ ion in YbNis are also in good agreement with experimental and estimated data found in the literature. (C) 2014 Elsevier B.V. All rights reserved.