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@ARTICLE{Herpers:186433,
      author       = {Herpers, Anja and O’Shea, Kerry J. and MacLaren, Donald
                      A. and Noyong, Michael and Rösgen, Bernd and Simon, Ulrich
                      and Dittmann, Regina},
      title        = {{C}ompeting strain relaxation mechanisms in epitaxially
                      grown {P}r$_{0.48}${C}a$_{0.52}${M}n{O}$_{3}$ on
                      {S}r{T}i{O}$_{3}$},
      journal      = {APL materials},
      volume       = {2},
      number       = {10},
      issn         = {2166-532X},
      address      = {Melville, NY},
      publisher    = {AIP Publ.},
      reportid     = {FZJ-2015-00509},
      pages        = {106106},
      year         = {2014},
      abstract     = {We investigated the impact of strain relaxation on the
                      current transport of Pr0.48Ca0.52MnO3 (PCMO) thin films
                      grown epitaxially on SrTiO3 single crystals by pulsed laser
                      deposition. The incorporation of misfit dislocations and the
                      formation of cracks are identified as competing mechanisms
                      for the relaxation of the biaxial tensile strain. Crack
                      formation leads to a higher crystal quality within the
                      domains but the cracks disable the macroscopic charge
                      transport through the PCMO layer. Progressive strain
                      relaxation by the incorporation of misfit dislocations, on
                      the other hand, results in a significant decrease of the
                      activation energy for polaron hopping with increasing film
                      thickness.},
      cin          = {PGI-7},
      ddc          = {620},
      cid          = {I:(DE-Juel1)PGI-7-20110106},
      pnm          = {521 - Controlling Electron Charge-Based Phenomena
                      (POF3-521)},
      pid          = {G:(DE-HGF)POF3-521},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000344588400009},
      doi          = {10.1063/1.4900817},
      url          = {https://juser.fz-juelich.de/record/186433},
}