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@ARTICLE{Titov:884044,
      author       = {Titov, Ivan and Honecker, Dirk and Mettus, Denis and
                      Feoktystov, Artem and Kohlbrecher, Joachim and Strunz, Pavel
                      and Michels, Andreas},
      title        = {{A}nisometric mesoscale nuclear and magnetic texture in
                      sintered {N}d-{F}e-{B} magnets},
      journal      = {Physical review materials},
      volume       = {4},
      number       = {5},
      issn         = {2475-9953},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {FZJ-2020-03064},
      pages        = {054419},
      year         = {2020},
      abstract     = {By means of temperature and wavelength-dependent
                      small-angle neutron scattering (SANS) experiments on
                      sintered isotropic and textured Nd-Fe-B magnets we provide
                      evidence for the existence of an anisometric structure in
                      the microstructure of the textured magnets. This conclusion
                      is reached by observing a characteristic cross-shaped
                      angular anisotropy in the total unpolarized SANS cross
                      section at temperatures well above the Curie temperature.
                      Comparison of the experimental SANS data to a
                      microstructural model based on the superquadrics form factor
                      allows us to estimate the shape and lower bounds for the
                      size of the structure. Subtraction of the scattering cross
                      section in the paramagnetic regime from data taken at room
                      temperature provides the magnetic SANS cross section.
                      Surprisingly, the anisotropy of the magnetic scattering is
                      very similar to the nuclear SANS signal, suggesting that the
                      nuclear structure is decorated by the magnetic moments via
                      spin-orbit coupling. Based on the computation of the
                      two-dimensional correlation function we estimate lower
                      bounds for the longitudinal and transversal magnetic
                      correlation lengths.},
      cin          = {JCNS-FRM-II / JCNS-2 / MLZ},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-2-20110106 / I:(DE-588b)4597118-3},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6G15 - FRM II / MLZ (POF3-6G15)},
      pid          = {G:(DE-HGF)POF3-6G4 / G:(DE-HGF)POF3-6G15},
      experiment   = {EXP:(DE-MLZ)KWS1-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000536405700005},
      doi          = {10.1103/PhysRevMaterials.4.054419},
      url          = {https://juser.fz-juelich.de/record/884044},
}