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@ARTICLE{Friedrich:1018238,
      author       = {Friedrich, Felix and Odobesko, Artem and Bouaziz, Juba and
                      Lounis, Samir and Bode, Matthias},
      title        = {{E}vidence for spinarons in {C}o adatoms},
      journal      = {Nature physics},
      volume       = {20},
      issn         = {1745-2473},
      address      = {Basingstoke},
      publisher    = {Nature Publishing Group},
      reportid     = {FZJ-2023-04634},
      pages        = {28-33},
      year         = {2024},
      abstract     = {Cobalt atoms on the (111) surfaces of noble metals are
                      considered to be prototypical systems for the Kondo effect
                      in scanning tunnelling microscopy experiments. Recent
                      first-principles calculations, however, suggest that the
                      experimentally observed spectroscopic zero-bias anomaly can
                      be interpreted in terms of excitations of the spin of the Co
                      atom and the formation of a novel many-body state, namely,
                      the spinaron, rather than from a Kondo resonance. The
                      spinaron is a magnetic polaron that results from the
                      interaction of spin excitations with conduction electrons.
                      However, the experimental confirmation for the existence of
                      spinarons remains elusive. Here we present experimental
                      evidence for spinaronic states in Co atoms on the Cu(111)
                      surface. Our spin-averaged and spin-polarized scanning
                      tunnelling spectroscopy measurements in high magnetic fields
                      allow us to discriminate between the different existing
                      theoretical models and to invalidate the prevailing
                      Kondo-based interpretation of the zero-bias anomaly. Our
                      extended ab initio calculations instead suggest the presence
                      of multiple spinaronic states. Thus, our work provides the
                      foundation to explore the characteristics and consequences
                      of these intriguing hybrid many-body states as well as their
                      design in artificial nanostructures.},
      cin          = {PGI-1 / IAS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406},
      pnm          = {5211 - Topological Matter (POF4-521) / 3D MAGiC -
                      Three-dimensional magnetization textures: Discovery and
                      control on the nanoscale (856538)},
      pid          = {G:(DE-HGF)POF4-5211 / G:(EU-Grant)856538},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001087870100001},
      doi          = {10.1038/s41567-023-02262-6},
      url          = {https://juser.fz-juelich.de/record/1018238},
}