Ce 3p hard x-ray photoelectron spectroscopy study of the topological Kondo insulator CeRu4Sn6
Abstract
Bulk sensitive hard x-ray photoelectron spectroscopy data of the Ce 3p core level of CeRu4Sn6 are presented. Using a combination of full multiplet and configuration iteration model we were able to obtain an accurate lineshape analysis of the data, thereby taking into account correlations for the strong plasmon intensities. We conclude that CeRu4Sn6 is a moderately mixed valence compound with a weight of 8% for the Ce f0 configuration in the ground state.
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