Abstract
Hyperfine interactions and electronic-spin-relaxation effects have been investigated in Yb · 6O by the 66.7-keV Mössbauer resonance in . At low temperatures a magnetic hyperfine field of 2900 ± 30 kOe is observed, with negligible quadrupole interaction. Detailed analysis of the hyperfine constants in light of present knowledge concerning radial parameters for ion and crystal-field constants in this compound give an upper limit for the magnetic Sternheimer shielding coefficient and a relation between the electronic shielding parameters . The temperature dependence of the spin-relaxation time is compatible with previous measurements of spin-lattice relaxation in this compound, and gives a spin-spin relaxation time of 6 × sec.
- Received 13 March 1974
DOI:https://doi.org/10.1103/PhysRevB.10.26
©1974 American Physical Society