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@INPROCEEDINGS{AntogniniSilva:1024410,
      author       = {Antognini Silva, David and Rüssmann, Philipp and Blügel,
                      Stefan},
      title        = {{F}irst principles analysis of {G}d nanostructures on
                      superconducting {N}b(110)},
      reportid     = {FZJ-2024-02153},
      year         = {2024},
      abstract     = {Materials that combine magnetism, spin-orbit interaction
                      and conventional s-wave superconductivity are a suitable
                      platform to study Yu-Shiba-Rusinov (YSR) states [1-3] and
                      Majorana zero modes (MZM) [4], that can be used as building
                      blocks of fault-tolerant topological qubits.Recently, STM
                      experiments for Gd chains on Nb(110) surface showed
                      indication of MZMs at the ends of the chains [5]. To better
                      understand the nature of those modes, we implemented the
                      Bogoliubov-de Gennes (BdG) formalism in the juKKR impurity
                      code [6] that allows the material-specific description of
                      defects in superconductors from first principles, and
                      applied it to Gd adatom nanostructures placed on the
                      superconducting Nb(110) surface. We analyze the YSR states
                      arising from the coupling of the magnetic Gd atoms and
                      investigate their dependence on the geometry of the
                      nanocluster and its magnetic ordering.This work was funded
                      by the DFG through Germany’s Excellence Cluster ML4Q (EXC
                      2004/1 - 390534769).[1] L. Yu, Acta Physica Sinica 21 (1965)
                      75[2] H. Shiba, Prog. Theor. Phys. 40 (1968) 435[3] A. I.
                      Rusinov, Sov. J. Exp. Theor. Phys. 29 (1969) 1101[4]
                      Nadj-Perge et al., Science 346 (2014) 6209[5] Y. Wang et
                      al., arXiv.2311.09742[6]
                      https://iffgit.fz-juelich.de/kkr/jukkr},
      month         = {Mar},
      date          = {2024-03-17},
      organization  = {Spring meeting of the German physical
                       society, Berlin (Germany), 17 Mar 2024
                       - 22 Mar 2024},
      subtyp        = {After Call},
      cin          = {PGI-1},
      cid          = {I:(DE-Juel1)PGI-1-20110106},
      pnm          = {5211 - Topological Matter (POF4-521) / DFG project
                      390534769 - EXC 2004: Materie und Licht für
                      Quanteninformation (ML4Q) (390534769)},
      pid          = {G:(DE-HGF)POF4-5211 / G:(GEPRIS)390534769},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1024410},
}