andMössbauer studies of concentrated and diluted rare-earth dihydrides: Single-line compounds and crystal-field effects
- 1 December 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 12 (11), 4805-4811
- https://doi.org/10.1103/physrevb.12.4805
Abstract
Mössbauer-effect measurements on the cubic intermetallic rare-earth dihydrides are reported utilizing the 86.8-keV and the 80.6-keV → transitions of and , respectively. All studies were carried out at liquid-helium temperatures on pure and diluted (with Y or Sc) paramagnetic samples. It is found that in the more concentrated alloys spin-spin () relaxation rates at 4.2 K are sufficiently fast to allow for the use of these systems as narrow-single-line Mössbauer sources and absorbers. Measurements on highly dilute and impurities in Y reveal the resolved paramagnetic hyperfine structure of a crystalline electric field (CEF) ground state in both cases. The results are discussed in terms of CEF theory.
Keywords
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