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@ARTICLE{Myczak:860440,
      author       = {Młyńczak, E. and Müller, M. C. T. D. and Gospodarič, P.
                      and Heider, T. and Aguilera, I. and Bihlmayer, G. and
                      Gehlmann, M. and Jugovac, M. and Zamborlini, G. and Tusche,
                      C. and Suga, S. and Feyer, V. and Plucinski, L. and
                      Friedrich, Christoph and Blügel, S. and Schneider, C. M.},
      title        = {{K}ink far below the {F}ermi level reveals new
                      electron-magnon scattering channel in {F}e},
      journal      = {Nature Communications},
      volume       = {10},
      number       = {1},
      issn         = {2041-1723},
      address      = {[London]},
      publisher    = {Nature Publishing Group UK},
      reportid     = {FZJ-2019-01194},
      pages        = {505},
      year         = {2019},
      abstract     = {Many properties of real materials can be modeled using ab
                      initio methods within a single-particle picture. However,
                      for an accurate theoretical treatment of excited states, it
                      is necessary to describe electron-electron correlations
                      including interactions with bosons: phonons, plasmons, or
                      magnons. In this work, by comparing spin- and
                      momentum-resolved photoemission spectroscopy measurements to
                      many-body calculations carried out with a newly developed
                      first-principles method, we show that a kink in the
                      electronic band dispersion of a ferromagnetic material can
                      occur at much deeper binding energies than expected
                      (Eb = 1.5 eV). We demonstrate that the observed
                      spectral signature reflects the formation of a many-body
                      state that includes a photohole bound to a coherent
                      superposition of renormalized spin-flip excitations. The
                      existence of such a many-body state sheds new light on the
                      physics of the electron-magnon interaction which is
                      essential in fields such as spintronics and Fe-based
                      superconductivity.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC / PGI-6 / IEK-5},
      ddc          = {500},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$ /
                      I:(DE-Juel1)PGI-6-20110106 / I:(DE-Juel1)IEK-5-20101013},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142) / 143 -
                      Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30705281},
      UT           = {WOS:000457290300001},
      doi          = {10.1038/s41467-019-08445-1},
      url          = {https://juser.fz-juelich.de/record/860440},
}