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@ARTICLE{onda:1041586,
      author       = {Žonda, Martin and Stetsovych, Oleksandr and Korytár,
                      Richard and Ternes, Markus and Temirov, Ruslan and
                      Racanelli, Andrea and Tautz, F. Stefan and Jelínek, Pavel
                      and Novotný, Tomáš and Švec, Martin},
      title        = {{R}esolving {A}mbiguity of the {K}ondo {T}emperature
                      {D}etermination in {M}echanically {T}unable
                      {S}ingle-{M}olecule {K}ondo {S}ystems},
      publisher    = {arXiv},
      reportid     = {FZJ-2025-02325},
      year         = {2018},
      abstract     = {Determination of the molecular Kondo temperature $T_K$
                      poses a challenge in most cases when the experimental
                      temperature cannot be tuned to a sufficient extent. We show
                      how this ambiguity can be resolved if additional control
                      parameters are present, such as magnetic field and
                      mechanical gating. We record the evolution of the
                      differential conductance by lifting an individual molecule
                      from the metal surface with the tip of a scanning tunneling
                      microscope. By fitting the measured conductance spectra with
                      the single impurity Anderson model we are able to
                      demonstrate that the lifting tunes the junction continuously
                      from the strongly correlated Kondo-singlet to the free spin
                      $1/2$ ground state. In the crossover regime, where $T_K$ is
                      similar to the temperature of experiment, the fitting yields
                      ambiguous estimates of $T_K$ varying by an order of
                      magnitude. We show that analysis of the conductance measured
                      in two distinct external magnetic fields can be used to
                      resolve this problem.},
      keywords     = {Mesoscale and Nanoscale Physics (cond-mat.mes-hall) (Other)
                      / FOS: Physical sciences (Other)},
      cin          = {PGI-3},
      cid          = {I:(DE-Juel1)PGI-3-20110106},
      pnm          = {5213 - Quantum Nanoscience (POF4-521)},
      pid          = {G:(DE-HGF)POF4-5213},
      typ          = {PUB:(DE-HGF)25},
      doi          = {10.48550/ARXIV.1811.00351},
      url          = {https://juser.fz-juelich.de/record/1041586},
}