Nanostructured crystals of fluorite phases Sr{sub 1−x}R{sub x}F{sub 2+x} and their ordering: VIII. Imperfect crystal structure of Sr{sub 0.71}Ce{sub 0.29}F{sub 2.29}

Journal Article · Sun Sep 15 00:00:00 EDT 2013 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774513040202· OSTI ID:22210530

A congruently melting single crystal of nonstoichiometric phase Sr{sub 0.71}Ce{sub 0.29}F{sub 2.29} crystallizing into the CaF{sub 2} structural type (sp. gr Fm<##> $\}\}\stackrel{\}¯}{3}$$ /bar 3 $ 3-bar m) has been studied by X-ray diffraction analysis. Vacancies in the main fluorine position 8c and interstitial anions in two 32f positions have been found. The ratio of the structural defects in the Sr{sub 0.71}Ce{sub 0.29}F{sub 2.29} solid solution corresponds to the tetrahedral configuration of the defect cluster {Sr_4_−_nCe_nF_2_6}.

• OSTI ID: 22210530
• Journal Information: Crystallography Reports, Vol. 58, Issue 5; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; http://www.springer-ny.com; This record replaces 45031456; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
CALCIUM FLUORIDES
DEFECTS
MONOCRYSTALS
NANOSTRUCTURES
SOLID SOLUTIONS
X-RAY DIFFRACTION