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Lattice dynamics of Na2S

Bührer, W.
Published in Journal of Physics. C, Solid State Physics. 1980, vol. 13, no. 30, p. 5495-5504
Abstract Inelastic neutron scattering has been used to measure the phonon dispersion relation along (001), (110) and (111) directions of a single crystal of Na2S at 50K. A simple shell model has been successfully fitted to the data. Dynamic quantities such as density of states, Debye temperature, displacement-displacement correlation functions and mean square ionic displacement are computed from the model and compared with CaF2. Finally some remarks on the ionic conductivity of antifluorites are given.
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Research group Groupe Bill
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BÜHRER, W., BILL, Hans. Lattice dynamics of Na2S. In: Journal of Physics. C, Solid State Physics, 1980, vol. 13, n° 30, p. 5495-5504. https://archive-ouverte.unige.ch/unige:3129

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Deposited on : 2009-09-21

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