Neutron quasielastic scattering from dynamic disorder in PbF2 and BaF2 |
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| Authors: | M.H. Dickens W. Hayes C. Smith M.T. Hutchings R.E. Lechner |
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| Affiliation: | Clarendon Laboratory, Oxford OX1 3PU, UK;Materials Physics Division B521.2, AERE Harwell, Didcot, OX11 ORA, UK;Hahn-Meitner Institut, D-1000 Berlin 39, Germany |
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| Abstract: | Coherent neutron quasielastic scattering has been observed from powder samples of PbF2, and BaF2, at temperatures above their transition to fast-ion conduction. The scattering is found to be similar to that previously observed in SrCl2 and CaF2, suggesting that it stems from a mechanism common to these fluorites in their fast-ion phase. |
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