Faculty of Science: Recent submissions
-
Cation and lone pair order-disorder in the polymorphic mixed metal bismuth scheelite Bi3FeMo2O12
Published 2022The Bi3FeMo2O12 system is examined as a rare example of a transition metal oxide which, upon heating, undergoes a symmetry lowering and 2:1 ordering of the transition metal cations. The compound was synthesised in the ...Open AccessArticle -
Beyond the Ionic Radii: A Multifaceted Approach to Understand Differences between the Structures of LnNbO4 and LnTaO4 Fergusonites
Published 2023Synchrotron X-ray powder diffraction methods have been used to obtain accurate structures of the lanthanoid tantalates, LnTaO4, at room temperature. Three different structures are observed, depending on the size of the Ln ...Open AccessArticle -
Understanding the re-entrant phase transition in a non-magnetic scheelite
Published 2022The stereochemical activity of lone pair electrons plays a central role in determining the structural and electronic properties of both chemically simple materials such as H2O, as well as more complex condensed phases such ...Open AccessArticle -
Tetrahedral displacive disorder in the scheelite-type oxide RbReO4
Published 2022Oxides exhibiting the scheelite-type structure are an important class of functional materials with notable applications in photocatalysis, luminescence and ionic conductivity. Like all materials, understanding their atomic ...Open AccessArticle -
Structural And Magnetic Properties Of Some Vacancy Ordered Osmium Halide Perovskites
Published 22The structures and magnetic properties of the Os4+ (5d4) halides K2OsCl6, K2OsBr6, Na2OsBr6 and Na2OsBr6.6H2O are described. K2OsCl6 and K2OsBr6 have a cubic vacancy-ordered double perovskites structure but undergo different ...Open AccessArticle