Nuclear magnetic resonance study of 19F motion in CsPbF3 |
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Authors: | VM Bouznik YuN Moskvich VN Voronov |
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Institution: | L.V. Kirensky Institute of Physics, Krasnoyarsk 660036, USSR |
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Abstract: | The 19F nuclear magnetic relaxation times and line-widths have been measured in polycrystalline CsPbF3 in the temperature range from ?150 to +300°C. The observed motional narrowing of the NMR line-width at low temperatures and the temperature dependences of the relaxation times are analysed in terms of a high vacancy diffusion of the F? ions. A phase transition is found at ?93°C from measurements of the NMR line shapes. |
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