Ionic motion in the defect pyrochlore NH4TaWO6 |
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| Authors: | M.A. Butler R.M. Biefeld |
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| Affiliation: | Physics Department, The University of British Columbia Vancouver, B.C., V6T 1W5, Canada |
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| Abstract: | Measurement of both spin-lattice and spin-spin relaxation time for protons in NH4TaWO6 suggest rapid ionic motion in this compound. Analysis of the data gives an activation energy of ～0.3 eV and an attempt frequency of ～1×1010 sec?1. The data is used to suggest a model for ionic motion which involves movement of individual protons rather than the NH4+ ion. |
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