% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Bessarab:843891,
      author       = {Bessarab, Pavel F. and Müller, Gideon P. and Lobanov, Igor
                      S. and Rybakov, Filipp N. and Kiselev, Nikolai S. and
                      Jónsson, Hannes and Uzdin, Valery M. and Blügel, Stefan
                      and Bergqvist, Lars and Delin, Anna},
      title        = {{L}ifetime of racetrack skyrmions},
      journal      = {Scientific reports},
      volume       = {8},
      number       = {1},
      issn         = {2045-2322},
      address      = {London},
      publisher    = {Nature Publishing Group},
      reportid     = {FZJ-2018-01418},
      pages        = {3433},
      year         = {2018},
      abstract     = {The skyrmion racetrack is a promising concept for future
                      information technology. There, binary bits are carried by
                      nanoscale spin swirls–skyrmions–driven along magnetic
                      strips. Stability of the skyrmions is a critical issue for
                      realising this technology. Here we demonstrate that the
                      racetrack skyrmion lifetime can be calculated from first
                      principles as a function of temperature, magnetic field and
                      track width. Our method combines harmonic transition state
                      theory extended to include Goldstone modes, with an
                      atomistic spin Hamiltonian parametrized from density
                      functional theory calculations. We demonstrate that two
                      annihilation mechanisms contribute to the skyrmion
                      stability: At low external magnetic field, escape through
                      the track boundary prevails, but a crossover field exists,
                      above which the collapse in the interior becomes dominant.
                      Considering a Pd/Fe bilayer on an Ir(111) substrate as a
                      well-established model system, the calculated skyrmion
                      lifetime is found to be consistent with reported
                      experimental measurements. Our simulations also show that
                      the Arrhenius pre-exponential factor of escape depends only
                      weakly on the external magnetic field, whereas the
                      pre-exponential factor for collapse is strongly field
                      dependent. Our results open the door for predictive
                      simulations, free from empirical parameters, to aid the
                      design of skyrmion-based information technology.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {000},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      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:29467438},
      UT           = {WOS:000425590600057},
      doi          = {10.1038/s41598-018-21623-3},
      url          = {https://juser.fz-juelich.de/record/843891},
}