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@ARTICLE{Elmers:150951,
      author       = {Elmers, H. J. and Chernenkaya, A. and Medjanik, K. and
                      Emmel, M. and Jakob, G. and Schönhense, G. and Gottlob, D.
                      and Krug, I. and de Groot, F. M. F. and Gloskovskii, A.},
      title        = {{E}xchange coupling in the correlated electronic states of
                      amorphous {G}d{F}e films},
      journal      = {Physical review / B},
      volume       = {88},
      number       = {17},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2014-00984},
      pages        = {174407},
      year         = {2013},
      abstract     = {The bulk sensitivity of hard x-ray photoelectron
                      spectroscopy in combination with circularly polarized
                      radiation of the P09 beamline at PETRA III enables the
                      investigation of the magnetic properties of capped films. We
                      have determined the temperature dependence of the magnetic
                      circular dichroism in the Fe 2p and in the Gd 3d states in
                      amorphous GdFe films. The magnetic dichroism reflects the
                      stronger temperature dependence of Gd moments compared to Fe
                      moments in agreement with mean-field models. We resolved the
                      exchange split Gd 3d5/2 substates and found a significant
                      temperature dependence of the splitting which is attributed
                      to a temperature dependent part of the exchange energy
                      caused by Stoner-like itinerant states. A comparison of
                      experimental and simulated x-ray photoemission spectra with
                      corresponding data for x-ray absorption spectroscopy
                      exciting the identical core holes clearly demonstrates that
                      the core hole exchange interaction is the origin of the
                      observed multiplet features for Gd.},
      cin          = {PGI-6},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-6-20110106},
      pnm          = {422 - Spin-based and quantum information (POF2-422)},
      pid          = {G:(DE-HGF)POF2-422},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000326819000001},
      doi          = {10.1103/PhysRevB.88.174407},
      url          = {https://juser.fz-juelich.de/record/150951},
}