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@ARTICLE{Kaiser:19945,
      author       = {Kaiser, A.M. and Schoppner, C. and Romer, F.M. and Hassel,
                      C. and Wiemann, C. and Cramm, S. and Nickel, F. and
                      Grychtol, P.. and Tieg, C. and Lindner, J. and Schneider,
                      C.M.},
      title        = {{N}ano and picosecond magnetization dynamics of weakly
                      coupled {C}o{F}e/{C}r/{N}i{F}e trilayers studied by a
                      multitechnique approach},
      journal      = {Physical review / B},
      volume       = {84},
      number       = {13},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-19945},
      pages        = {134406},
      year         = {2011},
      note         = {This work has been financially supported by the DFG (SFB
                      491) and the BMBF (05KS7UK1). The authors thank R. Schreiber
                      for the expert sample preparation as well as K. Bickmann, J.
                      Lauer, B. Kuepper, and H. Pfeiffer for technical support.
                      Thanks are due to the ESRF and BESSY beamline staffs for the
                      support during beamtimes.},
      abstract     = {We present results on the magnetization dynamics in
                      heterostructures of the CoFe/Cr/NiFe type. We have employed
                      a combination of different layer-selective methods covering
                      a broad range from quasistatic hysteresis measurements by
                      x-ray magnetic circular dichroism (XMCD), over time-resolved
                      photoemission electron microscopy (PEEM) at subnanosecond
                      timescales to high-frequency ferromagnetic resonance (FMR)
                      experiments. With increasing driving frequency, we found a
                      different influence of the coupling between the two
                      ferromagnetic layers on the dynamic behavior. Employing the
                      spatial resolution of the PEEM method, we have been able to
                      discern various dynamic responses in different regions of
                      the sample that could be attributed to magnetodynamic
                      processes with a different degree of coupling. In
                      conjunction with the complementary FMR and XMCD
                      measurements, we attribute the inhomogeneous influence of
                      interlayer coupling to a shift from
                      domain-wall-motion-dominated dynamics at low frequencies to
                      precession-dominated dynamics at higher frequencies.},
      keywords     = {J (WoSType)},
      cin          = {PGI-6},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-6-20110106},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000295793900005},
      doi          = {10.1103/PhysRevB.84.134406},
      url          = {https://juser.fz-juelich.de/record/19945},
}