ANISOTROPY OF THE DIPOLE FIELDS AT INTERSTITIAL SITES IN FERROMAGNETIC BCC AND HCP CRYSTALS

The anisotropy of the local magnetic dipole field is calculated for interstitial lattice sites of tetragonal, trigonal, or orthorhombic symmetry in bcc and hep crystals. In addition, for interstitial sites of uniaxial symmetry the effects of lattice deformations on the magnetic dipole field are investigated. A discussion of experimental results obtained from muon spin rotation experiments on Co and Gd shows that in these metals lattice-deformation effect may influence the local dipole fields significantly. © 1979 Springer-Verlag.