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@ARTICLE{Christovam:614773,
      author       = {Christovam, Denise S. and Sundermann, Martin and Marino,
                      Andrea and Takegami, Daisuke and Falke, Johannes and
                      Dolmantas, Paulius and Harder, Manuel and Gretarsson, Hlynur
                      and Keimer, Bernhard and Gloskovskii, Andrei and Haverkort,
                      Maurits W. and Elfimov, Ilya and Zwicknagl, Gertrud and
                      Andreev, Alexander V. and Havela, Ladislav and Bordelon,
                      Mitchell M. and Bauer, Eric D. and Rosa, Priscila F. S. and
                      Severing, Andrea and Tjeng, Liu Hao},
      title        = {{S}tabilization of {U} 5f$^2$ configuration in {UT}e$_2$
                      through {U} 6d dimers in the presence of {T}e$_2$ chains},
      journal      = {Physical review research},
      volume       = {6},
      number       = {3},
      issn         = {2643-1564},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {PUBDB-2024-05992},
      pages        = {033299},
      year         = {2024},
      abstract     = {We investigate the topological superconductor candidate
                      UTe$_2$ using high-resolution valence-band resonant
                      inelastic x-ray scattering at the U 𝑀$_{4,5}$ edges. We
                      observe atomiclike low-energy excitations that support the
                      correlated nature of this unconventional superconductor.
                      These excitations originate from the U 5⁢𝑓2
                      configuration, which is unexpected since the short
                      Te2-Te$_2$ distances exclude Te$_2$ 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 6⁢𝑑 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.},
      cin          = {FS-PETRA-S / $XFEL_E2_SCS$ / DOOR ; HAS-User},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-PETRA-S-20210408 /
                      $I:(DE-H253)XFEL_E2_SCS-20210408$ /
                      I:(DE-H253)HAS-User-20120731},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      DFG project G:(GEPRIS)387555779 - Von versteckter bis
                      antiferromagnetischer Ordnung mit großem Moment in URu2Si2:
                      eine Röntgenstrahluntersuchung der 5f Besetzung und
                      Wellenfunktionssymmetrie. (387555779)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      G:(GEPRIS)387555779},
      experiment   = {EXP:(DE-H253)P-P01-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001381679000002},
      doi          = {10.1103/PhysRevResearch.6.033299},
      url          = {https://bib-pubdb1.desy.de/record/614773},
}