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Stabilization of U configuration in through U dimers in the presence of Te2 chains
Phys. Rev. Research 6, 033299 – Published 16 September, 2024
DOI: https://doi.org/10.1103/PhysRevResearch.6.033299
Abstract
We investigate the topological superconductor candidate using high-resolution valence-band resonant inelastic x-ray scattering at the U edges. We observe atomiclike low-energy excitations that support the correlated nature of this unconventional superconductor. These excitations originate from the U configuration, which is unexpected since the short Te2-Te2 distances exclude Te2 being . By utilizing the photoionization cross-section dependence of the photoemission spectra in combination with band structure calculations, we infer that the stabilization of the U configuration is due to the U bonding states in the U dimers acting as a charge reservoir. Our results emphasize that the description of the physical properties should commence with a ansatz.
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References (71)
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