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@ARTICLE{Ziese:885490,
      author       = {Ziese, M. and Jin, Lei and Lindfors-Vrejoiu, I.},
      title        = {{U}nconventional anomalous {H}all effect driven by
                      oxygen-octahedra-tailoring of the {S}r{R}u{O} 3 structure},
      journal      = {JPhys materials},
      volume       = {2},
      number       = {3},
      issn         = {2515-7639},
      address      = {Bristol},
      publisher    = {IOP Publishing},
      reportid     = {FZJ-2020-03871},
      pages        = {034008 -},
      year         = {2019},
      abstract     = {The anomalous Hall effect of SrRuO3 is of special interest,
                      since Weyl nodes appear in the band structure and lead to an
                      unconventional temperature dependence of the anomalous Hall
                      constant. Moreover, it has been proposed that coupling of
                      SrRuO3 films to materials with strong spin–orbit coupling
                      or with ferroelectric or ferromagnetic order might lead to
                      the formation of skyrmions and a topological contribution to
                      the Hall effect. This latter conjecture is strongly debated.
                      We probed this proposal by interfacing thin SrRuO3 layers to
                      Pr0.7Ca0.3MnO3, since it is known that the strong
                      antiferromagnetic coupling between these two ferromagnets
                      leads to complex magnetization states. Superlattices with
                      sharp interfaces were grown by pulsed-laser deposition. The
                      epitaxial interfacing with the Pr0.7Ca0.3MnO3 layers led to
                      major modifications of the structural symmetry of the SrRuO3
                      layers. High resolution scanning transmission electron
                      microscopy revealed that the individual SrRuO3 layers of the
                      superlattices had heterogeneous structure with varying
                      oxygen octahedral tilt angles across the layers, turning
                      their structure to be tetragonal-like, with largely
                      suppressed octahedral tilts when the thickness of the
                      neighboring Pr0.7Ca0.3MnO3 layers was increased. These
                      structural modifications were accompanied by major changes
                      in the field dependence of the Hall signal with the mainly
                      tetragonal SrRuO3 layers showing features strongly
                      reminiscent of a topological Hall effect. However, since
                      there was an intimate link between Hall effect and
                      structure, the Hall data were interpreted as arising from a
                      superposition of Hall effect contributions from tetragonal
                      and orthorhombic SrRuO3 sub-layers.},
      cin          = {ER-C-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000560035200006},
      doi          = {10.1088/2515-7639/ab1aef},
      url          = {https://juser.fz-juelich.de/record/885490},
}