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Neutron powder diffraction data for low- and high-temperature NASICON phases of LiM2(PO4)3 (M=Hf, Sn)

  • E. Morin (a1), T. Le Mercier (a1), M. Quarton (a1), E. R. Losilla (a2), M. A. G. Aranda (a2) and S. Bruque (a2)...

Abstract

The new diffraction patterns of the low- and high-temperature phases of Li0.87Hf2.032(PO4)3 and LiSn2(PO4)3 are given and indexed on the basis of a structure refinement from neutron powder data using Rietveld method. The two isotypic compounds present a reversible phase transition: triclinic (LT, space group P1¯) ⇄ rhombohedral (HT, space group Rc) which proceeds by topotactic distortion of the structural skeleton.

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Neutron powder diffraction data for low- and high-temperature NASICON phases of LiM2(PO4)3 (M=Hf, Sn)

  • E. Morin (a1), T. Le Mercier (a1), M. Quarton (a1), E. R. Losilla (a2), M. A. G. Aranda (a2) and S. Bruque (a2)...

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