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@ARTICLE{Ho:1005298,
      author       = {Ho, Ping-Luen and Huang, Zhihao and Jin, Lei and Choi,
                      Si-Young and Dunin-Borkowski, Rafal E and Mayer, Joachim and
                      Tsang, Shik Chi Edman and Zhong, Xiaoyan},
      title        = {{A}tomic-{S}cale {D}etermination of {C}ation and {M}agnetic
                      {O}rder in the {T}riple {P}erovskite {S}r3{F}e2{R}e{O}9},
      journal      = {Microscopy and microanalysis},
      volume       = {29},
      number       = {1},
      issn         = {1079-8501},
      address      = {New York, NY},
      publisher    = {Cambridge University Press},
      reportid     = {FZJ-2023-01410},
      pages        = {326 - 333},
      year         = {2023},
      abstract     = {Pseudo-cubic (pc) perovskite oxides (ABO3) that can have
                      different magnetic cations with different types and degrees
                      of order at B sites have attracted considerable interest as
                      a result of their tunable magnetic properties. Nanoscale
                      inhomogeneity in cation order on the B sites can lead to
                      different magnetic ground states and electronic band
                      structures in local sample regions. Here, we determine
                      cation order on the atomic scale in a nanosized Sr3Fe2ReO9
                      phase that has a 1:2 B-site-ordered triple perovskite
                      structure using aberration-corrected analytical transmission
                      electron microscopy (TEM), revealing that the Fe and Re
                      cations form tripled-layered repeats with
                      –[Fe–Fe–Re]n– sequences along [111]pc and an
                      ordering vector of 1/3[111]*. To the best of our knowledge,
                      this 1:2 B-site-ordered triple perovskite Sr3Fe2ReO9 phase
                      has not been reported before. Based on a relaxed theoretical
                      model that is consistent with the experimental images,
                      density functional theory calculations are performed to
                      determine the magnetic ground states and exchange parameters
                      of the newly discovered Sr3Fe2ReO9 phase, in which
                      nearest-neighbour Fe and Re cations are coupled
                      antiferromagnetically. This combination of
                      aberration-corrected analytical TEM and ab initio
                      calculations provides physical insight into cation order and
                      magnetic coupling in perovskite oxides at the atomic level.},
      cin          = {ER-C-1},
      ddc          = {500},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {5351 - Platform for Correlative, In Situ and Operando
                      Characterization (POF4-535) / 3D MAGiC - Three-dimensional
                      magnetization textures: Discovery and control on the
                      nanoscale (856538)},
      pid          = {G:(DE-HGF)POF4-5351 / G:(EU-Grant)856538},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001033590800031},
      doi          = {10.1093/micmic/ozac011},
      url          = {https://juser.fz-juelich.de/record/1005298},
}