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@ARTICLE{Elnaggar:891390,
      author       = {Elnaggar, Hebatalla and Haverkort, Maurits W. and Hamed,
                      Mai Hussein and Dhesi, Sarnjeet S. and de Groot, Frank M.
                      F.},
      title        = {{T}ensor description of {X}-ray magnetic dichroism at the
                      {F}e {L} 2,3 -edges of {F}e 3 {O} 4},
      journal      = {Journal of synchrotron radiation},
      volume       = {28},
      number       = {1},
      issn         = {1600-5775},
      address      = {[S.l.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2021-01479},
      pages        = {247 - 258},
      year         = {2021},
      abstract     = {A procedure to build the optical conductivity tensor that
                      describes the full magneto-optical response of the system
                      from experimental measurements is presented. Applied to the
                      Fe L2,3-edge of a 38.85 nm Fe3O4/SrTiO3 (001) thin-film,
                      it is shown that the computed polarization dependence using
                      the conductivity tensor is in excellent agreement with that
                      experimentally measured. Furthermore, the magnetic field
                      angular dependence is discussed using a set of fundamental
                      spectra expanded on spherical harmonics. It is shown that
                      the convergence of this expansion depends on the details of
                      the ground state of the system in question and in particular
                      on the valence-state spin–orbit coupling. While a cubic
                      expansion up to the third order explains the
                      angular-dependent X-ray magnetic linear dichroism of Fe3+
                      well, higher-order terms are required for Fe2+ when the
                      orbital moment is not quenched.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT},
      ddc          = {550},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {33399575},
      UT           = {WOS:000605205600030},
      doi          = {10.1107/S1600577520015027},
      url          = {https://juser.fz-juelich.de/record/891390},
}