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@ARTICLE{Brinker:910476,
      author       = {Brinker, Sascha and Küster, Felix and Parkin, Stuart S. P.
                      and Sessi, Paolo and Lounis, Samir},
      title        = {{A}nomalous excitations of atomically crafted quantum
                      magnets},
      journal      = {Science advances},
      volume       = {8},
      number       = {4},
      issn         = {2375-2548},
      address      = {Washington, DC [u.a.]},
      publisher    = {Assoc.},
      reportid     = {FZJ-2022-03859},
      pages        = {eabi7291},
      year         = {2022},
      abstract     = {High–energy resolution spectroscopic studies of quantum
                      magnets proved extremely valuable in accessing
                      magnetodynamics quantities, such as energy barriers,
                      magnetic interactions, and lifetime of excited states. Here,
                      we investigate a previously unexplored flavor of low-energy
                      spin excitations for quantum spins coupled to an electron
                      bath. In sharp contrast to the usual tunneling signature of
                      two steps symmetrically centered around the Fermi level, we
                      find a single step in the conductance. Combining
                      time-dependent and many-body perturbation theories, magnetic
                      field–dependent tunneling spectra are explained as the
                      result of an interplay between weak magnetic anisotropy
                      energy, magnetic interactions, and Stoner-like electron-hole
                      excitations that are strongly dependent on the magnetic
                      states of the nanostructures. The results are rationalized
                      in terms of a noncollinear magnetic ground state and the
                      dominance of ferro- and antiferromagnetic interactions. The
                      atomically crafted nanomagnets offer an appealing model for
                      the exploration of electrically pumped spin systems.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {500},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {5211 - Topological Matter (POF4-521)},
      pid          = {G:(DE-HGF)POF4-5211},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {35080983},
      UT           = {WOS:000747329300005},
      doi          = {10.1126/sciadv.abi7291},
      url          = {https://juser.fz-juelich.de/record/910476},
}