Re-entrant phase transition of the crystalline ion conductor Ag₇P₃S₁₁

URN to cite this document:: urn:nbn:de:bvb:355-epub-117973
DOI to cite this document:: 10.5283/epub.11797

Brinkmann, Christian ; Eckert, Hellmut ; Wilmer, Dirk ; Vogel, Michael ; Schmedt auf der Günne, Jörn ; Hofbauer, Wilfried ; Rau, Franz ; Pfitzner, Arno

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Date of publication of this fulltext: 23 Dec 2009 11:36

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Abstract

A highly unusual structural evolution has been observed in temperature dependent studies of the fast ion conductor Ag7P3S11, using X-ray diffraction, Raman scattering, P-31 and Ag-109 NMR spectroscopy, and electrical conductivity measurements. At 205 K the high-temperature gamma-phase (space group C2/c) undergoes a phase transition to an intermediate beta-phase of different symmetry. At a ...