Core-Level Photoelectron Spectroscopy Study of UTe${}_2$

Abstract

The valence state of UTe${}_2$ was studied by core-level photoelectron spectroscopy. The main peak position of the U $4f$ core-level spectrum of UTe${}_2$ coincides with that of UB${}_2$, which is an itinerant compound with a nearly $5f^3$ configuration. However, the main peak of UTe${}_2$ is broader than that of UB${}_2$, and satellite structures are observed in the higher binding energy side of the main peak, which are characteristics of mixed-valence uranium compounds. These results suggest that the U 5$f$ state in UTe${}_2$ is in a mixed valence state with a dominant contribution from the itinerant $5f^3$ configuration.

accepted to J. Phys. Soc. Jpn. (2021)

References in corpus (4)

• Unconventional Superconductivity in Heavy Fermion UTe2
• Low energy band structure and symmetries of UTe2 from angle resolved photoemission spectroscopy
• Electronic structures of ferromagnetic superconductors ${\mathrm{UGe}}_2$ and $\mathrm{UCoGe}$ studied by angle-resolved photoelectron spectroscopy
• Itinerant magnetism in URhGe revealed by angle resolved photoelectron spectroscopy

Cited by in corpus (4)

• Magnetic Properties under Pressure in Novel Spin-Triplet Superconductor UTe2
• UTe${}_2$: a nearly insulating half-filled $j=\frac{5}{2}$ $5f^3$ heavy fermion metal
• Magnetovolume Effect on the First-Order Metamagnetic Transition in UTe${}_2$
• Identifying f-electron symmetries of UTe2 with O-edge resonant inelastic X-ray scattering