Temperature and pressure-induced spin-state transitions in LaCoO3

Abstract

We report the continuous variation of the spin moment of cobalt in LaCoO3 across its temperature and pressure-induced spin transitions evidenced with Kβemission spectra. The first thermal transition is best described by a transition to an orbitally nondegenerate intermediate spin (S=1) state. In parallel, continuous redistribution of the 3d electrons is also indicated by partial fluorescence yield X-ray absorption spectra. At high pressure, our study confirms that the material becomes low spin between 40 and 70 kbar at room temperature.

References in corpus (7)

• Structural phenomena associated with the spin-state transition in LaCoO3
• Evidence for a Low-Spin to Intermediate-Spin State Transition in LaCoO3
• Evidence for orbital ordering in LaCoO3
• Pressure-Induced Intermediate-to-Low Spin State Transition in LaCoO3
• Pressure induced high-spin to low-spin transition in FeS evidenced by x-ray emission spectroscopy
• Spin-State Transition and Metal-Insulator Transition in La${}_{1-x}$Eu${}_x$CoO${}_3$}
• Itinerant metamagnetism and possible spin transition in LaCoO${}_3$ by temperature/hole doping

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