Ionic conductivity properties and 19F NMR investigation in Ln1−yCdyF3−y (Ln=Ce, Nd) solid solutions with tysonite-type structure Part I: Ionic conductivity properties

Autor:	Jean Sénégas, Mohamed El Omari, Jean-Maurice Réau
Rok vydání:	1998
Předmět:	Diffraction Inorganic chemistry Analytical chemistry General Chemistry Fluorine-19 NMR Condensed Matter Physics Dielectric spectroscopy Ion chemistry.chemical_compound chemistry Ionic conductivity General Materials Science Fluoride Electrical conductor Solid solution
Zdroj:	Solid State Ionics. 107:281-291
ISSN:	0167-2738
DOI:	10.1016/s0167-2738(97)00535-3
Popis:	New fast F − ion conductors with tysonite-type structure have been obtained inside anion-deficient non-stoichiometric solid solutions of Ln 1− y Cd y F 3− y formulation (Ln=Ce, Nd). An exchange mechanism between fluoride sublattices has been identified for the ( y ≠0) compositions. A second exchange mechanism at lower temperature has been shown for CeF 3 and NdF 3 . The presence of both electrical anomalies in the temperature dependence of LnF 3 (Ln=Ce, Nd) is confirmed by C p variation and X-ray diffraction analysis as a function of temperature.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::62bdd5f14709954d4e60888faf239875 https://doi.org/10.1016/s0167-2738(97)00535-3 Zobrazit plný text záznamu Full Text from ScienceDirect