Croatica Chemica Acta, Vol. 88 No. 4, 2015.
Original scientific paper
https://doi.org/10.5562/cca2695
Perovskite-Related Oxide Fluorides: The Use of Mössbauer Spectroscopy in the Investigation of Magnetic Properties
Frank J. Berry
; School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
Colin Greaves
; School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
Nicola N. M. Gurusinghe
; School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
Cathryn Hancock
; School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
Peter Slater
; School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
Michael F. Thomas
; Department of Physics, University of Liverpool, Liverpool L69 3BX, United Kingdom
Jose F. Marco
; Instituto de Quimica Fisica, Consejo Superior de Investigaciones Cientificas, Seranno 119, 28006 Madrid, Spain
Abstract
We review here some of our recent work on the synthesis and characterisation of new perovskite-related oxide fluorides. We demonstrate the use of low temperature fluorination methods for the preparation of new phases with high fluorine contents. We also show how fluorine can be accommodated in different sites according to the structural details of the initial oxide and the fluorine content. Importantly, we describe how Mössbauer spectroscopy is a powerful technique for monitoring changes in cation oxidation state as a result of fluorination and for examining the complex magnetic interactions which result from the accommodation of fluorine within the structures and how these can be related to structural properties and changes to the superexchange pathways.
Keywords
oxide fluorides; Mössbauer spectroscopy; magnetism
Hrčak ID:
151118
URI
Publication date:
31.12.2015.
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