Abstract
The angular dependence of stress-induced shifts of the gyromagnetic factor of the doublets of and in Ca and in Ce and Th have been measured in electron-paramagnetic-resonance experiments. The observed variation of the angular dependence of the shifts is explained in terms of a phenomenological spin-lattice Hamiltonian. A microscopic theory is used to obtain a quantitative evaluation of the observed shifts using a point-charge model for the induced crystalline field. The results indicate that covalent effects and the shielding of the electric field at the impurity site are important.
- Received 12 July 1973
DOI:https://doi.org/10.1103/PhysRevB.9.4888
©1974 American Physical Society