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Title: Structural and magnetic characterisation of the novel spin frustrated double perovskite Sr{sub 2}ScMoO{sub 6}

A novel Mo{sup 5+} double perovskite, Sr{sub 2}ScMoO{sub 6}, has been synthesised. This material crystallises in the tetragonal I4/m symmetry space group and considerable cation disorder between Sc{sup 3+} and Mo{sup 5+} is observed. Magnetic susceptibility measurements show no evidence of a magnetic transition down to 6 K and no evidence of the valence bond glass state previously reported for A{sub 2}YMoO{sub 6} (A=Ba, Sr). The inverse susceptibility data cannot be fit to the Curie–Weiss law at any temperature range between 6 and 300 K. This deviation from Curie–Weiss law suggests that strong antiferromagnetic correlations are still present in Sr{sub 2}ScMoO{sub 6}. - Graphical abstract: A novel double perovskite Sr{sub 2}ScMoO{sub 6} has been synthesised which has corner sharing MoO{sub 6} and ScO{sub 6} octahedra. The Sr{sup 2+} cations reside in the cavities and exhibit anisotropic thermal motion. There is no evidence of magnetic order down to 6 K. - Highlights: • The novel perovskite Sr{sub 2}ScMoO{sub 6} has been synthesised. • Disorder of the Mo{sup 5+} and Sc{sup 3+} cations is observed. • There is no evidence of a magnetic transition down to 6 K. • There is likely frustrated short range magnetic order or spin liquid behaviour.
Authors:
;
Publication Date:
OSTI Identifier:
22443453
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 219; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANISOTROPY; ANTIFERROMAGNETISM; CATIONS; GLASS; LIQUIDS; MAGNETIC SUSCEPTIBILITY; MOLYBDENUM IONS; PEROVSKITE; SCANDIUM IONS; SPACE GROUPS; STRONTIUM IONS; SYNTHESIS; TEMPERATURE RANGE; TETRAGONAL LATTICES