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@ARTICLE{Paul:201068,
      author       = {Paul, Amitesh and Paul, N. and Jutimoosik, Jaru and
                      Yimnirun, Rattikorn and Rujirawat, Saroj and Höpfner,
                      Britta and Lauermann, Iver and Lux-Steiner, M. and Mattauch,
                      Stefan and Böni, Peter},
      title        = {{C}hange in interface magnetism of an exchange-coupled
                      system due to the presence of nonmagnetic spacers},
      journal      = {Physical review / B},
      volume       = {87},
      number       = {1},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-03378},
      pages        = {014431},
      year         = {2013},
      abstract     = {We report on the effect of nonmagnetic spacer layers on the
                      interface magnetism and the exchange bias in the
                      archetypical [Co/CoO]16 system. The separation of the
                      magnetic bilayers by Au layers with various thicknesses
                      dAu≥25 nm leads to a threefold increase of the exchange
                      bias field (Heb). Reflectometry with polarized neutrons does
                      not reveal any appreciable change in the domain population.
                      This result is in agreement with the observation that the
                      granular microstructure within the [Co/CoO] bilayers is
                      independent of dAu. The significant reduction of the
                      magnetic moments in the Co layers can be attributed to
                      interfacial disorder at the Co-Au interfaces.
                      Element-specific x-ray absorption spectroscopy attributes
                      part of the enhancement of Heb to the formation of Co3O4 in
                      the [Co/CoO] bilayers within the multilayers. A considerable
                      proportion of the increase of Heb can be attributed to the
                      loss of magnetization at each of the Co-Au interfaces with
                      increasing dAu. We propose that the interfacial magnetism of
                      ferro- and antiferromagnetic layers can be significantly
                      altered by means of metallic spacer layers thus affecting
                      the exchange bias significantly. This study shows that the
                      magnetism in magnetic multilayers can be engineered by
                      nonmagnetic spacer layers without involving the
                      microstructure of the individual layers.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1 /
                      IKP-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)IKP-1-20111104},
      pnm          = {54G - JCNS (POF2-54G24)},
      pid          = {G:(DE-HGF)POF2-54G24},
      experiment   = {EXP:(DE-MLZ)TREFF-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000314092800004},
      doi          = {10.1103/PhysRevB.87.014431},
      url          = {https://juser.fz-juelich.de/record/201068},
}