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@ARTICLE{Zimmermann:807655,
      author       = {Zimmermann, Bernd and Mavropoulos, Phivos and Long, Nguyen
                      H. and Gerhorst, Christian-Roman and Blügel, Stefan and
                      Mokrousov, Yuriy},
      title        = {{F}ermi surfaces, spin-mixing parameter, and colossal
                      anisotropy of spin relaxation in transition metals from ab
                      initio theory},
      journal      = {Physical review / B},
      volume       = {93},
      number       = {14},
      issn         = {2469-9950},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2016-02141},
      pages        = {144403},
      year         = {2016},
      abstract     = {The Fermi surfaces and Elliott-Yafet spin-mixing parameter
                      (EYP) of several elemental metals are studied by ab initio
                      calculations. We focus first on the anisotropy of the EYP as
                      a function of the direction of the spin-quantization axis
                      [B. Zimmermann et al., Phys. Rev. Lett. 109, 236603 (2012)].
                      We analyze in detail the origin of the gigantic anisotropy
                      in 5d hcp metals as compared to 5d cubic metals by band
                      structure calculations and discuss the stability of our
                      results against an applied magnetic field. We further
                      present calculations of light (4d and 3d) hcp crystals,
                      where we find a huge increase of the EYP anisotropy,
                      reaching colossal values as large as $6000\%$ in hcp Ti. We
                      attribute these findings to the reduced strength of
                      spin-orbit coupling, which promotes the anisotropic
                      spin-flip hot loops at the Fermi surface. In order to
                      conduct these investigations, we developed an adapted
                      tetrahedron-based method for the precise calculation of
                      Fermi surfaces of complicated shape and accurate
                      Fermi-surface integrals within the full-potential
                      relativistic Korringa-Kohn-Rostoker Green function method.},
      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)},
      pid          = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000373311500005},
      doi          = {10.1103/PhysRevB.93.144403},
      url          = {https://juser.fz-juelich.de/record/807655},
}