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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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Wilson, Chick C.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2020Phase behavior and substitution limit of mixed cesium-formamidinium lead triiodide perovskitescitations
- 2014Determining hydrogen positions in crystal engineered organic molecular complexes by joint neutron powder and single crystal X-ray diffractioncitations
- 2012Probing hydrogen positions in hydrous compounds:information from parametric neutron powder diffraction studiescitations
- 2012Probing hydrogen positions in hydrous compoundscitations
- 2010Structural isotope effects in metal hydrides and deuteridescitations
- 2010The kinetics of bulk hydration of the disaccharides α-lactose and trehalose by in situ neutron powder diffractioncitations
- 2009Crystallography of hydrogen-containing compoundscitations
- 2009Crystallography of hydrogen-containing compounds: realizing the potential of neutron powder diffractioncitations
- 2009In situ neutron powder diffraction and structure determination in controlled humiditiescitations
- 2002Variable temperature powder neutron diffraction study of SmNiO3 through its M-I transition using a combination of samarium and nickel isotopic substitutioncitations
Places of action
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article
Variable temperature powder neutron diffraction study of SmNiO3 through its M-I transition using a combination of samarium and nickel isotopic substitution
Abstract
Neutron powder diffraction studies of 154Sm58NiO3, 154Sm60NiO3, and 154Sm62NiO3, at a range of temperatures through the M−I transition at approximately 128 °C, have been performed on the new general materials diffractometer (GEM) at ISIS, RAL. With combined data-set Rietveld analysis, using samples containing different nickel isotopes with contrasting scattering lengths, it has been found that extremely high quality structural parameters can be determined, even though total data collection times are more than an order of magnitude shorter than those previously used for this system. Rietveld analysis shows that the evolution of the structural parameters over the temperature range are smooth and that no symmetry change or abrupt structural transition occurs at the M−I transition. This is consistent with evolution of the high-temperature metallic material within the low-temperature insulating phase over the temperature range 108−128 °C. The key effects of thermal motion on the M−I transition have been extracted from the data and are discussed.