Damping of spinful excitons in LaCoO${}_3$ by thermal fluctuations: Theory and experiment

Atsushi Hariki, Ru-Pan Wang, Andrii Sotnikov +7

We present Co $L_3$-edge resonant inelastic x-ray scattering (RIXS) of bulk LaCoO${}_3$ across the thermally-induced spin-state crossover around 100~K. Owing to a high energy resolut…