Orbital Contributions to the Transferred Hyperfine Fields in Rare-Earth Compounds
- 1 May 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 7 (9), 4232-4241
- https://doi.org/10.1103/physrevb.7.4232
Abstract
Magnetic hyperfine fields acting on the nuclei of diamagnetic atoms in rare-earth intermetallic compounds are generally assumed to follow a form . However, such an expression is inadequate to describe the detailed dependence of the transferred hyperfine fields as the rare-earth ion is changed. It is shown that an expression based on a Hamiltonian which includes orbital contributions to the hyperfine field can describe the available data on several series of rare-earth compounds. This dependence has the form , where the are appropriate rare-earth reduced matrix elements. By fitting the extant data to this expression, we find that the orbital contributions and are appreciable. The general form of this expression is found to be valid for a variety of mechanisms which produce transferred and supertransferred hyperfine fields.
Keywords
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