Anomalous dispersion of Co-O breathing modes in LaCoO3
LaCoO3 exhibits a rhombohedrally distorted perovskite-structured lattice, where the cobalt ions are surrounded by six oxygen atoms. It shows two crossovers at 100 K and 500 K: the first crossover is a result of the thermally activated spin-state crossover of the Co ions, and the second crossover is associated with the metal-insulator crossover. Both crossovers are connected to the spin state evolution of the Co ions from a low spin (LS) to a high spin (HS) configuration. It was proposed that the two different spin states form a 3D checkerboard-type dynamic short-range order near the room temperature. Here we propose to investigate the Co-O breathing mode, whose atomic displacement pattern perfectly mimics the proposed order.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
Alsu Gazizulina; IVANOV Alexandre; Yuliia Tymoshenko and WEBER Frank. (2023). Anomalous dispersion of Co-O breathing modes in LaCoO3. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-01-586
This data is not yet public
This data is not yet public
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