Lattice and spin structure investigation from Perovskite to Brownmillerite in La0.7Sr0.3MnO3-¿ powder
In complex oxides, oxygen vacancy plays a crucial role in determining the physical properties and enables various applications. The Perovskite (PV) to Brownmillerite (BM) topotactic phase transition can be triggered by deoxygenation in the La0.7Sr0.3MnO3-¿ (LSMO) system. Previously, we investigated the influence of oxygen off-stoichiometry in LSMO thin films during the PV-BM topotactic phase transition. However, the properties of thin films are strongly influenced by the strain induced from the substrate. In contrast, bulk-like powder constitutes a strain-free system. Comparing such a strain-free system with the thin film system is highly interesting in order to elucidate the role of the strain onto the topotactic phase transition. Especially, neutron powder diffraction allows a detailed determination of both crystal and spin structure, which can enable a comprehensive understanding of how oxygen vacancies influence the lattice and spin structure during the phase transition.
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The recommended format for citing this dataset in a research publication is in the following format:
YIN Chenyang; CAO Lei; FERNANDEZ DIAZ Maria Teresa and PETRACIC Oleg. (2023). Lattice and spin structure investigation from Perovskite to Brownmillerite in La0.7Sr0.3MnO3-¿ powder. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2924
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