% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Cao:859195,
      author       = {Cao, Lei and Petracic, Oleg and Zakalek, Paul and Weber,
                      Alexander and Rücker, Ulrich and Schubert, Jürgen and
                      Koutsioumpas, Alexandros and Mattauch, Stefan and Brückel,
                      Thomas},
      title        = {{R}eversible {C}ontrol of {P}hysical {P}roperties via an
                      {O}xygen-{V}acancy-{D}riven {T}opotactic {T}ransition in
                      {E}pitaxial {L}a 0.7 {S}r 0.3 {M}n{O} 3− δ {T}hin
                      {F}ilms},
      journal      = {Advanced materials},
      volume       = {31},
      number       = {7},
      issn         = {0935-9648},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2019-00085},
      pages        = {1806183 -},
      year         = {2019},
      abstract     = {The vacancy distribution of oxygen and its dynamics
                      directly affect the functional response of complex oxides
                      and their potential applications. Dynamic control of the
                      oxygen composition may provide the possibility to
                      deterministically tune the physical properties and establish
                      a comprehensive understanding of the structure–property
                      relationship in such systems. Here, an
                      oxygen‐vacancy‐induced topotactic transition from
                      perovskite to brownmillerite and vice versa in epitaxial
                      La0.7Sr0.3MnO3−δ thin films is identified by real‐time
                      X‐ray diffraction. A novel intermediate phase with a
                      noncentered crystal structure is observed for the first time
                      during the topotactic phase conversion which indicates a
                      distinctive transition route. Polarized neutron
                      reflectometry confirms an oxygen‐deficient interfacial
                      layer with drastically reduced nuclear scattering length
                      density, further enabling a quantitative determination of
                      the oxygen stoichiometry (La0.7Sr0.3MnO2.65) for the
                      intermediate state. Associated physical properties of
                      distinct topotactic phases (i.e., ferromagnetic metal and
                      antiferromagnetic insulator) can be reversibly switched by
                      an oxygen desorption/absorption cycling process.
                      Importantly, a significant lowering of necessary conditions
                      (temperatures below 100 °C and conversion time less than 30
                      min) for the oxygen reloading process is found. These
                      results demonstrate the potential applications of defect
                      engineering in the design of perovskite‐based functional
                      materials.},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-FRM-II / JCNS-HBS / PGI-9},
      ddc          = {660},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-HBS-20180709 / I:(DE-Juel1)PGI-9-20110106},
      pnm          = {144 - Controlling Collective States (POF3-144) / 524 -
                      Controlling Collective States (POF3-524) / 6212 - Quantum
                      Condensed Matter: Magnetism, Superconductivity (POF3-621) /
                      6213 - Materials and Processes for Energy and Transport
                      Technologies (POF3-621) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
                      G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6213 /
                      G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)MARIA-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:30570780},
      UT           = {WOS:000459724200012},
      doi          = {10.1002/adma.201806183},
      url          = {https://juser.fz-juelich.de/record/859195},
}