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@ARTICLE{Wysocki:875404,
      author       = {Wysocki, Lena and Schöpf, Jörg and Ziese, Michael and
                      Yang, Lin and Kovács, András and Jin, Lei and Versteeg,
                      Rolf B. and Bliesener, Andrea and Gunkel, Felix and
                      Kornblum, Lior and Dittmann, Regina and van Loosdrecht, Paul
                      H. M. and Lindfors-Vrejoiu, Ionela},
      title        = {{E}lectronic {I}nhomogeneity {I}nfluence on the {A}nomalous
                      {H}all {R}esistivity {L}oops of {S}r{R}u{O} 3 {E}pitaxially
                      {I}nterfaced with 5d {P}erovskites},
      journal      = {ACS omega},
      volume       = {5},
      number       = {11},
      issn         = {2470-1343},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {FZJ-2020-02013},
      pages        = {5824 - 5833},
      year         = {2020},
      abstract     = {SrRuO3, a 4d ferromagnet with multiple Weyl nodes at the
                      Fermi level, offers a rich playground to design epitaxial
                      heterostructures and superlattices with fascinating magnetic
                      and magnetotransport properties. Interfacing ultrathin
                      SrRuO3 layers with large spin–orbit coupling 5d
                      transition-metal oxides, such as SrIrO3, results in
                      pronounced peaklike anomalies in the magnetic field
                      dependence of the Hall resistivity. Such anomalies have been
                      attributed either to the formation of Néel-type skyrmions
                      or to modifications of the Berry curvature of the
                      topologically nontrivial conduction bands near the Fermi
                      level of SrRuO3. Here, epitaxial multilayers based on SrRuO3
                      interfaced with 5d perovskite oxides, such as SrIrO3 and
                      SrHfO3, were studied. This work focuses on the
                      magnetotransport properties of the multilayers, aiming to
                      unravel the role played by the interfaces with 5d
                      perovskites in the peaklike anomalies of the Hall resistance
                      loops of SrRuO3 layers. Interfacing with large band gap
                      insulating SrHfO3 layers did not influence the anomalous
                      Hall resistance loops, while interfacing with the nominally
                      paramagnetic semimetal SrIrO3 resulted in pronounced
                      peaklike anomalies, which have been lately attributed to a
                      topological Hall effect contribution as a result of
                      skyrmions. This interpretation is, however, under strong
                      debate and lately alternative causes, such as inhomogeneity
                      of the thickness and the electronic properties of the SrRuO3
                      layers, have been considered. Aligned with these latter
                      proposals, our findings reveal the central role played in
                      the anomalies of the Hall resistivity loops by electronic
                      inhomogeneity of SrRuO3 layers due to the interfacing with
                      semimetallic 5d5 SrIrO3.},
      cin          = {PGI-7 / JARA-FIT / PGI-5 / ER-C-1},
      ddc          = {660},
      cid          = {I:(DE-Juel1)PGI-7-20110106 / $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)PGI-5-20110106 / I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {521 - Controlling Electron Charge-Based Phenomena
                      (POF3-521)},
      pid          = {G:(DE-HGF)POF3-521},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:32226862},
      UT           = {WOS:000521782400028},
      doi          = {10.1021/acsomega.9b03996},
      url          = {https://juser.fz-juelich.de/record/875404},
}