Abstract

High-resolution core-level photoemission and core-level absorption spectroscopy of a series of Fe intercalates, Fe x NbS 2 ( x = 0, ∼1/4 and ∼1/3) has been performed to investigate changes in the electronic structures induced by the intercalation. From the evolution of spectral line shapes from the host material, we obtained important information on the electronic and geometric structures specific to particular atomic sites upon intercalation with Fe. The spectra of Fe core-levels also show x dependence, suggesting appreciable mixing of orbitals between Fe and NbS 2.

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