Structural transformation from amorphous to hexagonal tungsten bronze FeF3, studied by Mössabauer spectroscopy |
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| Authors: | ME Lopez-Herrera F Varret Y Calage G Ferey |
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| Institution: | 1. Laboratoire de Spectrométrie Mössbauer et Oxyfluorures Ioniques, E.R.A. C.N.R.S. no. 682 and 609, Faculté des Sciences, 72017 Le Mans Cedex, France;2. Laboratoire des Fluorures et Oxyfluorures Ioniques, E.R.A. C.N.R.S. no. 682 and 609, Faculté des Sciences, 72017 Le Mans Cedex, France |
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| Abstract: | By annealing vapor-deposited amorphous FeF3 at 180°C for 2 days, a crystalline phase has been obtained; it was identified by Mössbauer spectroscopy as hexagonal tungsten bronze FeF3. the structural quality of this phase was good enough to provide the hyperfine parameters and notably the electric field gradient tensor. The role of Fe2+ impurities in this new synthesis method is discussed. |
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