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arXiv · 1112.3406

Spin transition in LaCoO3 investigated by resonant soft X-ray emission spectroscopy

M. Magnuson·S. M. Butorin·C. Såthe·J. Nordgren·P. Ravindran
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Abstract

The spin transition in LaCoO3 is investigated by temperature-dependent resonant soft X-ray emission spectroscopy near the Co 2p absorption edges. This element-specific technique is more bulk sensitive with respect to the temperature induced spin-state of the Co3+ ions in LaCoO3 than other high-energy spectroscopic methods. The spin transition is interpreted and discussed with ab-initio density-functional theory within the fixed-spin moment method, which is found to yield consistent spectral functions to the experimental data. The spectral changes for LaCoO3 as a function of temperature suggest a change in spin-state as the temperature is raised from 85 to 300 K while the system remains in the same spin state as the temperature is further increased to 510 K.

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M. Magnuson, S. M. Butorin, C. Såthe, J. Nordgren, P. Ravindran. 2011-12-29. Spin transition in LaCoO3 investigated by resonant soft X-ray emission spectroscopy. https://doi.org/10.1209/epl%2Fi2004-10183-8

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