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@ARTICLE{Kapuscinski:452401,
      author       = {Kapuscinski, Martin and Munier, Pierre and Segad, Mo and
                      Bergstrom, Lennart},
      title        = {{T}wo-{S}tage {A}ssembly of {M}esocrystal {F}ibers with
                      {T}unable {D}iameters in {W}eak {M}agnetic {F}ields},
      journal      = {Nano letters},
      volume       = {20},
      number       = {10},
      issn         = {1530-6992},
      address      = {Washington, DC},
      publisher    = {ACS Publ.},
      reportid     = {PUBDB-2020-04651},
      pages        = {7359 - 7366},
      year         = {2020},
      abstract     = {Controlling the morphology and crystallographic coherence
                      of assemblies of magnetic nanoparticles is a promising route
                      to functional materials. Time-resolved small-angle X-ray
                      scattering (SAXS) was combined with microscopy and scaling
                      analysis to probe and analyze evaporation-induced assembly
                      in levitating drops and thin films of superparamagnetic iron
                      oxide nanocubes in weak magnetic fields. We show that
                      assembly of micrometer-sized mesocrystals with a cubic shape
                      preceded the formation of fibers with a high degree of
                      crystallographic coherence and tunable diameters. The
                      second-stage assembly of aligned cuboidal mesocrystals into
                      fibers was driven by the magnetic field, but the first-stage
                      assembly of the oleate-capped nanocubes was unaffected by
                      weak magnetic fields. The transition from 3D growth of the
                      primary mesocrystals to the second stage 1D assembly of the
                      elongated fibers was related to the size and field
                      dependence of isotropic van der Waals and directional
                      dipolar interactions between the interacting mesocrystals.},
      cin          = {DOOR ; HAS-User},
      ddc          = {660},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (POF3-622) / CALIPSOplus - Convenient
                      Access to Light Sources Open to Innovation, Science and to
                      the World (730872) / SWEDEN-DESY - SWEDEN-DESY Collaboration
                      $(2020_Join2-SWEDEN-DESY)$},
      pid          = {G:(DE-HGF)POF3-6G3 / G:(EU-Grant)730872 /
                      $G:(DE-HGF)2020_Join2-SWEDEN-DESY$},
      experiment   = {EXP:(DE-H253)P-P03-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:32924498},
      UT           = {WOS:000598727300056},
      doi          = {10.1021/acs.nanolett.0c02770},
      url          = {https://bib-pubdb1.desy.de/record/452401},
}