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@ARTICLE{Pierobon:888820,
      author       = {Pierobon, Leonardo and Kovács, András and Schäublin,
                      Robin E. and Gerstl, Stephan S. A. and Caron, Jan and Wyss,
                      Urs V. and Dunin-Borkowski, Rafal E. and Löffler, Jörg F.
                      and Charilaou, Michalis},
      title        = {{U}nconventional magnetization textures and domain-wall
                      pinning in {S}m–{C}o magnets},
      journal      = {Scientific reports},
      volume       = {10},
      number       = {1},
      issn         = {2045-2322},
      address      = {[London]},
      publisher    = {Macmillan Publishers Limited, part of Springer Nature},
      reportid     = {FZJ-2020-05234},
      pages        = {21209},
      year         = {2020},
      note         = {ist Open Access},
      abstract     = {Some of the best-performing high-temperature magnets are
                      Sm–Co-based alloys with a microstructure that comprises an
                      Sm2Co17 matrix and magnetically hard SmCo5 cell walls. This
                      generates a dense domain-wall-pinning network that endows
                      the material with remarkable magnetic hardness. A precise
                      understanding of the coupling between magnetism and
                      microstructure is essential for enhancing the performance of
                      Sm–Co magnets, but experiments and theory have not yet
                      converged to a unified model. Here, transmission electron
                      microscopy, atom probe tomography, and nanometer-resolution
                      off-axis electron holography have been combined with
                      micromagnetic simulations to reveal that the magnetization
                      state in Sm–Co magnets results from curling instabilities
                      and domain-wall pinning effects at the intersections of
                      phases with different magnetic hardness. Additionally, this
                      study has found that topologically non-trivial magnetic
                      domains separated by a complex network of domain walls play
                      a key role in the magnetic state by acting as nucleation
                      sites for magnetization reversal. These findings reveal
                      previously hidden aspects of magnetism in Sm–Co magnets
                      and, by identifying weak points in the microstructure,
                      provide guidelines for improving these high-performance
                      magnetic materials.},
      cin          = {ER-C-1},
      ddc          = {600},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)
                      / 3D MAGiC - Three-dimensional magnetization textures:
                      Discovery and control on the nanoscale (856538) / ESTEEM3 -
                      Enabling Science and Technology through European Electron
                      Microscopy (823717) / DFG project 405553726 - TRR 270:
                      Hysterese-Design magnetischer Materialien für effiziente
                      Energieumwandlung (405553726)},
      pid          = {G:(DE-HGF)POF3-143 / G:(EU-Grant)856538 /
                      G:(EU-Grant)823717 / G:(GEPRIS)405553726},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {33273594},
      UT           = {WOS:000615394300209},
      doi          = {10.1038/s41598-020-78010-0},
      url          = {https://juser.fz-juelich.de/record/888820},
}