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Stabilization of U 5f.sup.2./sup. configuration in UTe.sub.2./sub. through U 6.i.d./i. dimers in the presence of Te2 chains
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SYSNO ASEP 0604820 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Stabilization of U 5f2 configuration in UTe2 through U 6d dimers in the presence of Te2 chains Author(s) Christovam, D.S. (DE)
Sundermann, M. (DE)
Marino, A. (DE)
Takegami, D. (DE)
Falke, J. (DE)
Dolmantas, P. (DE)
Harder, M. (DE)
Gretarsson, H. (DE)
Keimer, B. (DE)
Gloskovskii, A. (DE)
Haverkort, M.W. (DE)
Elfimov, I. (CA)
Zwicknagl, G. (DE)
Andreev, Alexander V. (FZU-D) RID, ORCID
Havela, L. (CZ)
Bordelon, M.M. (US)
Bauer, E.D. (US)
Rosa, P.F.S. (US)
Severing, A. (DE)
Tjeng, L.H. (DE)Number of authors 20 Article number 033299 Source Title Physical Review Research. - : American Physical Society
Roč. 6, č. 3 (2024)Number of pages 8 s. Language eng - English Country US - United States Keywords Uranium compounds ; delocalization of 5f electrons ; magnetic properties Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects EH22_008/0004591 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA21-09766S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 001381679000002 EID SCOPUS 85205833665 DOI https://doi.org/10.1103/PhysRevResearch.6.033299 Annotation We investigate the topological superconductor candidate UTe2 using high-resolution valence-band resonant inelastic x-ray scattering at the U M-4,M-5 edges. We observe atomiclike low-energy excitations that support the correlated nature of this unconventional superconductor. These excitations originate from the U 5 f(2) configuration, which is unexpected since the short Te2-Te2 distances exclude Te2 being 2-. 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 5 f(2) configuration is due to the U 6d 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 5 f(2) ansatz. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2025 Electronic address https://hdl.handle.net/11104/0362325
Number of the records: 1