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@ARTICLE{Bretos:203498,
      author       = {Bretos, Iñigo and Schneller, Theodor and Falter, Martina
                      and Bäcker, Michael and Hollmann, Eugen and Wördenweber,
                      Roger and Molina-Luna, Leopoldo and Van Tendeloo, Gustaaf
                      and Eibl, Oliver},
      title        = {{S}olution-derived {YB}a $_{2}$ {C}u $_{3}$ {O} $_{7−δ}$
                      ({YBCO}) superconducting films with {B}a{Z}r{O} $_{3}$
                      ({BZO}) nanodots based on reverse micelle stabilized
                      nanoparticles},
      journal      = {Journal of materials chemistry / C},
      volume       = {3},
      number       = {16},
      issn         = {2050-7534},
      address      = {London {[u.a.]},
      publisher    = {RSC},
      reportid     = {FZJ-2015-05419},
      pages        = {3971 - 3979},
      year         = {2015},
      abstract     = {Superconducting YBa2Cu3O7-delta (YBCO) films with
                      artificial BaZrO3 (BZO) nanodots were prepared using a
                      chemical solution deposition method involving hybrid
                      solutions composed of trifluoroacetate-based YBCO precursors
                      and reverse micelle stabilized BZO nanoparticle dispersions.
                      Microemulsion-mediated synthesis was used to obtain
                      nano-sized (similar to 12 nm) and mono-dispersed BZO
                      nanoparticles that preserve their features once introduced
                      into the YBCO solution, as revealed by dynamic light
                      scattering. Phase pure, epitaxial YBCO films with randomly
                      oriented BZO nanodots distributed over their whole
                      microstructure were grown from the hybrid solutions on (100)
                      LaAlO3 substrates. The morphology of the YBCO-BZO
                      nanocomposite films was strongly influenced by the amount of
                      nanoparticles incorporated into the system, with contents
                      ranging from 5 to 40 $mol\%.$ Scanning electron microscopy
                      showed a high density of isolated second-phase defects
                      consisting of BZO nanodots in the nanocomposite film with 10
                      $mol\%$ of BZO. Furthermore, a direct observation and
                      quantitative analysis of lattice defects in the form of
                      interfacial edge dislocations directly induced by the BZO
                      nanodots was evidenced by transmission electron microscopy.
                      The superconducting properties (77 K) of the YBCO films
                      improved considerably by the presence of such nanodots,
                      which seem to enhance the morphology of the sample and
                      therefore the intergranular critical properties. The
                      incorporation of preformed second-phase defects (here, BZO)
                      during the growth of the superconducting phase is the main
                      innovation of this novel approach for the all-solution based
                      low-cost fabrication of long-length coated conductors.},
      cin          = {PGI-8 / ICS-8 / JARA-FIT},
      ddc          = {540},
      cid          = {I:(DE-Juel1)PGI-8-20110106 / I:(DE-Juel1)ICS-8-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {523 - Controlling Configuration-Based Phenomena (POF3-523)},
      pid          = {G:(DE-HGF)POF3-523},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000352870400018},
      doi          = {10.1039/C4TC02543A},
      url          = {https://juser.fz-juelich.de/record/203498},
}