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@ARTICLE{Zhang:18096,
      author       = {Zhang, G. and Zhang, Y. and Dong, H. and Krause, H.-J. and
                      Xie, X. and Braginski, A.I. and Offenhäusser, A. and Jiang,
                      M.},
      title        = {{P}arameter tolerance of the {SQUID} {B}ootstrap {C}ircuit},
      journal      = {Superconductor science and technology},
      volume       = {24},
      issn         = {0953-2048},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {PreJuSER-18096},
      pages        = {015006},
      year         = {2012},
      note         = {The Istituto Superiore Mario Boella is gratefully
                      acknowledged for financial support.},
      abstract     = {The effect of disorder is investigated in granular
                      superconductive materials with strong-and weak-links. The
                      transition is controlled by the interplay of the tunneling g
                      and intragrain g(intr) conductances, which depend on the
                      strength of the intergrain coupling. For g << g(intr), the
                      transition first involves the grain boundary, while for g
                      similar to g(intr) the transition occurs into the whole
                      grain. The different intergrain couplings are considered by
                      modeling the superconducting material as a disordered
                      network of Josephson junctions. Numerical simulations show
                      that on increasing the disorder, the resistive transition
                      occurs for lower temperatures and the curve broadens. These
                      features are enhanced in disordered superconductors with
                      strong-links. The different behavior is further checked by
                      estimating the average network resistance for weak-and
                      strong-links in the framework of the effective medium
                      approximation theory. These results may shed light on long
                      standing puzzles such as: (i) enhancement of the
                      superconducting transition temperature of many metals in the
                      granular states; (ii) suppression of superconductivity in
                      homogeneously disordered films compared to standard granular
                      systems close to the metal-insulator transition; (iii)
                      enhanced degradation of superconductivity by doping and
                      impurities in strongly linked materials, such as magnesium
                      diboride, compared to weakly linked superconductors, such as
                      cuprates.},
      keywords     = {J (WoSType)},
      cin          = {ICS-8 / PGI-8 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-8-20110106 / I:(DE-Juel1)PGI-8-20110106 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien /
                      BioSoft: Makromolekulare Systeme und biologische
                      Informationsverarbeitung},
      pid          = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK505},
      shelfmark    = {Physics, Applied / Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000285344400007},
      doi          = {10.1088/0953-2048/24/1/015006},
      url          = {https://juser.fz-juelich.de/record/18096},
}