Abstract
The theory of transferred hyperfine interaction at the site in the -electron systems and in cubic crystals is developed from the first principles. The transfer of the electron from the occupied and orbits of to the empty orbit on the ion is considered and all the integrals of the kinetic energy and Coulomb terms are evaluated using Hartree-Fock wave functions. The spin density in the case of one ion is found to be different from that in the ion-pair case. The -spin density is found to vary with the interactomic distance as in the pair case. The variation of the spin density with interatomic separation is rather involved. As the distance is increased from 1.8 Å, the spin density first decreases going through a minimum at about Å and is almost independent of distance from Å to Å. For larger than about 2.2 Å this spin density decreases monotonically with increasing distance. The isotropic as well as the anisotropic transferred hyperfine coupling are calculated.
- Received 9 March 1979
DOI:https://doi.org/10.1103/PhysRevB.21.2702
©1980 American Physical Society