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@ARTICLE{Parlak:866489,
      author       = {Parlak, U. and Adam, R. and Bürgler, D. E. and Gang, S.
                      and Schneider, C. M.},
      title        = {{O}ptically induced magnetization reversal in [ {C}o / {P}t
                      ] {N} multilayers: {R}ole of domain wall dynamics},
      journal      = {Physical review / B},
      volume       = {98},
      number       = {21},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2019-05591},
      pages        = {214443},
      year         = {2018},
      abstract     = {All-optical switching (AOS) of magnetization in ferri- and
                      ferromagnetic thin films has in recent years attracted a
                      strong interest since it allows magnetization reversal in
                      the absence of applied magnetic field. Here we investigate
                      AOS in [Co/Pt]N multilayers. The coercivity (HC) of the
                      multilayers was tuned either by varying the bilayer
                      repetition number (N) or the sample temperature (T). During
                      the AOS experiments, we first illuminated the multilayers by
                      a sequence of femtosecond laser pulses with varying fluence,
                      light polarization, and repetition rate. The optically
                      affected area was then imaged with magneto-optical Kerr
                      microscopy. Our results indicate that the optical pulses can
                      trigger either AOS or initiate an all-optical domain
                      formation (AODF). The laser fluence required for AOS scales
                      linearly with HC and depends on a precise tuning of laser
                      pulse fluence, repetition rate, and light polarization.
                      Furthermore, the magnetic response of the samples at a
                      varying ambient temperature (down to 50 K) and for different
                      time intervals between subsequent laser pulses point to the
                      crucial role of domain wall dynamics in optical control of
                      magnetization in ferromagnetic multilayers.},
      cin          = {PGI-6},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-6-20110106},
      pnm          = {522 - Controlling Spin-Based Phenomena (POF3-522)},
      pid          = {G:(DE-HGF)POF3-522},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000454421300001},
      doi          = {10.1103/PhysRevB.98.214443},
      url          = {https://juser.fz-juelich.de/record/866489},
}