Crystal growth, vibrational properties and applications of fluoride compounds with 3D or 2D networks of MF6 octahedra

Jean Nouet

doi:10.1117/12.280703

14 July 1997 Crystal growth, vibrational properties and applications of fluoride compounds with 3D or 2D networks of MF6 octahedra

Jean Nouet

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Proceedings Volume 3178, Solid State Crystals: Growth and Characterization; (1997) https://doi.org/10.1117/12.280703
Event: XII Conference on Solid State Crystals: Materials Science and Applications, 1996, Zakopane, Poland

Abstract

The most common crystal growth methods for fluorides are reviewed and illustrated by examples of materials that have been the object of a lot of investigations in the past three decades. The attention is focused on the vibrational analysis of A^IM^IIF₃, A₂M^IIF₄, M^IIIF₃ and A^IM^IIIF₄ compounds whose structural arrangement are derived from the perovskite structure. The characteristics of the phonon spectra (measured in particular by inelastic neutron scattering when large single crystals are available) are described together with the parameters of the lattice dynamics models that makes it possible to calculate them. Such results are used to explain the mechanism of structural phase transitions in A^IM^IIF₃, A^IM^IIIF₄ compounds, and to investigate more complex structures such as KFeF₄, the piezoelectric compounds BaM^IIF₄, the laser matrix LiYF₄, mixed fluoride compounds and fluoride glasses. Applications to non destructive measurements of rare earth ions concentration in fluoride glasses and to solid state tunable lasers are also considered.

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Jean Nouet "Crystal growth, vibrational properties and applications of fluoride compounds with 3D or 2D networks of MF6 octahedra", Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); https://doi.org/10.1117/12.280703

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