Mossbauer spectroscopy of rare earth impurities in hexagonal host metals:ZrEr
- 1 July 1975
- journal article
- Published by IOP Publishing in Journal of Physics F: Metal Physics
- Vol. 5 (7), 1417-1425
- https://doi.org/10.1088/0305-4608/5/7/021
Abstract
The authors discuss how the Mossbauer effect can be used to obtain information on the electronic ground state of rare earth impurities in hexagonal host metals. It is shown that the properties of the electronic ground state may in general be determined unambiguously and it is pointed out that the Mossbauer studies polycrystalline samples are sufficient. Experimentally the system Zr:Er is considered where the data indicates that an error was made in the analyses of previous Mossbauer data. The CEF ground state of Er impurities in Zr is found to be a Gamma 7 Kramers' doublet with g/sub ///=13.8+or-0.4 and mod gperpendicular to mod =2.8+or-0.2. The exchange coupling constant is derived to be mod Jsf mod =3.5*10-2 eV.Keywords
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