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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Gillie, Lisa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Composition-dependent morphologies of CeO2 nanoparticles in the presence of Co-adsorbed H2O and CO2citations
- 2022Structure and Properties of Cubic PuH2 and PuH3citations
- 2004Crystallographic and magnetic structures of Y₀.₈Sr₂.₂Mn₂GaO₈-ɗ : a new vacancy-ordered perovskite structurecitations
- 2003Synthesis and Characterisation of the Reduced Double-Layer Manganite Sr₃Mn₂O₆₊xcitations
- 2002Staged fluorine insertion into manganese oxides with Ruddlesden-Popper structures:LaSrMnO4F and La1.2Sr1.8Mn2O7Fcitations
- 2002Synthesis and characterisation of reduced single layer manganite Sr₂MnO₃.₅₊xcitations
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article
Staged fluorine insertion into manganese oxides with Ruddlesden-Popper structures:LaSrMnO4F and La1.2Sr1.8Mn2O7F
Abstract
The synthesis, structures and magnetic properties of two fluorine-intercalated layered manganates, LaSrMnO4F and La1.2Sr1.8Mn2O7F, are reported. Rietveld structure refinement based on time of flight neutron powder diffraction data indicates that both compounds are tetragonal (space group P4/nmm) with cell parameters a=3.77696(7) Angstrom, c=14.1026(8) Angstrom (LaSrMnO4F) and a=3.8103(1) Angstrom, c=21.7220(2) Angstrom (La1.2Sr1.8Mn2O7F). Fluorine occupies interstitial sites in only one of the two rock salt layers available in the unit cell, leading to novel staged intercalation structures. The interstitial fluorine increases the spacing between the two adjacent rock salt layers and thereby causes a significant reduction in the Mn-O apical bonds directed towards the intercalated regions. The Mn valences of both compounds are close to 4, and no long range magnetic order was observed in the title compounds down to 5 K.