Neutron diffraction studies of temperature induced phase transitions in Rb2KFeF6 elpasolite
Language
en
Article de revue
This item was published in
Zeitschrift für Kristallographie. 2006, vol. 23, n° suppl., p. 467-472
De Gruyter
English Abstract
A neutron diffraction study of temperature induced phase transition in Rb2KFeF6 elpasolite has been performed. At room temperature the structure is cubic with space group Fm3m. At T = 170 K a structural phase transition ...Read more >
A neutron diffraction study of temperature induced phase transition in Rb2KFeF6 elpasolite has been performed. At room temperature the structure is cubic with space group Fm3m. At T = 170 K a structural phase transition takes place. Space group and atom coordinates in this phase has been defined. The crystal structure is good refined by orthorhombic space group Pmnn. Possible models are discussed.Read less <
Keywords
Neutron diffraction
Elpasolites
Rietveld analysis
Origin
Hal imported