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@ARTICLE{Heggen:10980,
      author       = {Heggen, M. and Houben, L. and Feuerbacher, M.},
      title        = {{P}lastic deformation mechanism in complex solids},
      journal      = {Nature materials},
      volume       = {9},
      issn         = {1476-1122},
      address      = {Basingstoke},
      publisher    = {Nature Publishing Group},
      reportid     = {PreJuSER-10980},
      pages        = {332 - 336},
      year         = {2010},
      note         = {We thank C. Thomas and M. Schmidt for producing the
                      materials and J. Barthel for carrying out the HAADF-STEM
                      image simulation. This work was supported by the 6th
                      Framework EU Network of Excellence 'Complex Metallic Alloys'
                      (Contract No. NMP3-CT-2005-500140) and the Deutsche
                      Forschungsgemeinschaft, (PAK 36).},
      abstract     = {In simple crystalline materials, plastic deformation mostly
                      takes place by the movement of dislocations. Although the
                      underlying mechanisms in these materials are well explored,
                      in complex metallic alloys--crystalline solids containing up
                      to thousands of atoms per unit cell--the defects and
                      deformation mechanisms remain essentially unknown. Owing to
                      the large lattice parameters of these materials, extended
                      dislocation concepts are required. We investigated a typical
                      complex metallic alloy with 156 atoms per unit cell using
                      atomic-resolution aberration-corrected transmission electron
                      microscopy. We found a highly complex deformation mechanism,
                      based on the movement of a dislocation core mediating strain
                      and separate escort defects. On deformation, the escort
                      defects move along with the dislocation core and locally
                      transform the material structure for the latter. This
                      mechanism implies the coordinated movement of hundreds of
                      atoms per elementary glide step, and nevertheless can be
                      described by simple rearrangement of basic structural
                      subunits.},
      keywords     = {J (WoSType)},
      cin          = {IFF-8},
      ddc          = {610},
      cid          = {I:(DE-Juel1)VDB788},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Chemistry, Physical / Materials Science, Multidisciplinary
                      / Physics, Applied / Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:20190769},
      UT           = {WOS:000275901000022},
      doi          = {10.1038/nmat2713},
      url          = {https://juser.fz-juelich.de/record/10980},
}