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@ARTICLE{Marino:588614,
      author       = {Marino, Andrea and Sundermann, Martin and Christovam,
                      Denise Sacramento and Amorese, Andrea and Chang, Chun-Fu and
                      Dolmantas, Paulius and Said, Ayman H. and Gretarsson, Hlynur
                      and Keimer, Bernhard and Haverkort, Maurits W. and Andreev,
                      Alexander V. and Havela, Ladislav and Thalmeier, Peter and
                      Tjeng, Liu Hao and Severing, Andrea},
      title        = {{S}inglet magnetism in intermetallic ${UG}a_2$ unveiled by
                      inelastic x-ray scattering},
      journal      = {Physical review / B},
      volume       = {108},
      number       = {4},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {PUBDB-2023-04840},
      pages        = {045142},
      year         = {2023},
      abstract     = {Using high resolution tender x-ray resonant inelastic
                      scattering and hard x-ray nonresonant inelastic scattering
                      beyond the dipole limit we were able to detect electronic
                      excitations in intermetallic UGa$_2$ that are highly atomic
                      in nature. Analysis of the spectral lineshape reveals that
                      the local 5f$^2$ configuration characterizes the correlated
                      nature of this ferromagnet. The orientation and directional
                      dependence of the spectra indicate that the ground state is
                      made of the $Γ_1$ singlet and/or $Γ_6$ doublet symmetry.
                      With the ordered moment in the ab plane, we infer that the
                      magnetism originates from the higher lying $Γ_6$ doublet
                      being mixed with the $Γ_1$ singlet due to intersite
                      exchange, qualifying UGa$_2$ to be a true quantum magnet.
                      The ability to observe atomic excitations is crucial to
                      resolve the ongoing debate about the degree of localization
                      versus itineracy in U intermetallics.},
      cin          = {DOOR ; HAS-User / FS-PETRA-S},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731 /
                      I:(DE-H253)FS-PETRA-S-20210408},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      DFG project 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:001103167400001},
      doi          = {10.1103/PhysRevB.108.045142},
      url          = {https://bib-pubdb1.desy.de/record/588614},
}