| About this Abstract |
| Meeting |
Materials Science & Technology 2011
|
| Symposium
|
MS&T'11 Poster Session
|
| Presentation Title |
105 Effect of Fluorine Incorporation on the Structures and Magnetic Properties of Perovskite and Ruddlesden Popper Ferrates |
| Author(s) |
Peter Slater, Cathryn Hancock, Frank Berry |
| On-Site Speaker (Planned) |
Peter Slater |
| Abstract Scope |
Fluorination of Sr3Fe2O7-x and (Sr/Ba)FeO3-x by heat treatment with polyvinylidine fluoride (PVDF) gives a range of novel oxide fluoride compounds, which have been analysed by X-ray diffraction and 57Fe Mössbauer spectroscopy. For the perovskite systems, the fluorination leads to complete filling of the anion sites, the reduction of Fe to Fe3+ and the appearance of magnetic ordering. For Sr3Fe2O7-x, fluorine incorporation leads to a very large expansion in the unit cell volume due to occupancy of interstitial sites within the structure. The O/F distribution in each system will be discussed in detail. |
| Proceedings Inclusion? |
Undecided |