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@ARTICLE{Freimuth:820051,
      author       = {Freimuth, Frank and Blügel, Stefan and Mokrousov, Yuriy},
      title        = {{L}aser-induced torques in metallic ferromagnets},
      journal      = {Physical review / B},
      volume       = {94},
      number       = {14},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2016-05608},
      pages        = {144432},
      year         = {2016},
      abstract     = {We study laser-induced torques in bcc Fe, hcp Co, and L10
                      FePt based on first-principles electronic structure
                      calculations and the Keldysh nonequilibrium formalism. We
                      find that the torques have two contributions, one from the
                      inverse Faraday effect (IFE) and one from the optical
                      spin-transfer torque (OSTT). Depending on the ferromagnet at
                      hand and on the quasiparticle broadening the two
                      contributions may be of similar magnitude, or one
                      contribution may dominate over the other. Additionally, we
                      determine the nonequilibrium spin polarization in order to
                      investigate its relation to the torque. We find the torques
                      and the perpendicular component of the nonequilibrium spin
                      polarization to be odd in the helicity of the laser light,
                      while the spin polarization that is induced parallel to the
                      magnetization is helicity independent. The parallel
                      component of the nonequilibrium spin polarization is orders
                      of magnitude larger than the perpendicular component. In the
                      case of hcp Co we find good agreement between the calculated
                      laser-induced torque and a recent experiment.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {530},
      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) /
                      Topological transport in real materials from ab initio
                      $(jias12_20121101)$ / Magnetic Anisotropy of Metallic
                      Layered Systems and Nanostructures $(jiff13_20131101)$},
      pid          = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143 /
                      $G:(DE-Juel1)jias12_20121101$ /
                      $G:(DE-Juel1)jiff13_20131101$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000390348300010},
      doi          = {10.1103/PhysRevB.94.144432},
      url          = {https://juser.fz-juelich.de/record/820051},
}