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@ARTICLE{Gtze:627757,
      author       = {Götze, Kathrin and Pearce, Matthew and Negi, Suchit and
                      Soh, Jian-Rui and Prabhakaran, Dharmalingam and Goddard,
                      Paul},
      title        = {{F}ermi surface and effective masses of {I}r{O}$_2$ probed
                      by de {H}aas-van {A}lphen quantum oscillations},
      journal      = {Physical review materials},
      volume       = {9},
      number       = {10},
      issn         = {2475-9953},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {PUBDB-2025-01597},
      pages        = {104201},
      year         = {2025},
      abstract     = {Iridium-containing conducting materials are widely
                      investigated for their strong spin-orbit couplingand
                      potential topological properties. Recently the commonly used
                      electrode material iridiumdioxide was found to host a large
                      spin-Hall conductivity and was shown to support Dirac nodal
                      lines.Here we present quantum-oscillation experiments on
                      high-quality IrO$_2$ single crystals using the de Haas-van
                      Alphen effect measured using torque magnetometry with a
                      piezo-resistive microcantileveras well as density functional
                      theory-based band-structure calculations. The angle,
                      temperature andfield dependencies of the oscillations and
                      the band dispersion provide valuable information on
                      theproperties of the charge carriers, including the
                      Fermi-surface geometry and electronic
                      correlations.Comparison of experimental results to
                      calculations allows us to assigns the observed de
                      Haas-vanAlphen frequencies to the calculated Fermi surface
                      topology. We find that the effective masses of IrO$_2$ are
                      enhanced compared to the rest electron mass me, ranging from
                      1.9 to 3.0 me, whereasthe scattering times indicate
                      excellent sample quality. We discuss our results in context
                      with recent ARPES and band-structure calculation results
                      that found Dirac nodal lines in IrO$_2$ and comparethe
                      effective masses and other electronic properties to those of
                      similar materials like the nodal chainmetal ReO$_2$ in which
                      Dirac electrons with very light effective masses have been
                      observed.},
      cin          = {FS-US},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-US-20120731},
      pnm          = {621 - Accelerator Research and Development (POF4-621) /
                      ExtremeQuantum - Quantum materials under extreme conditions
                      (681260)},
      pid          = {G:(DE-HGF)POF4-621 / G:(EU-Grant)681260},
      experiment   = {EXP:(DE-MLZ)External-20140101 /
                      EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1103/b1sg-8gps},
      url          = {https://bib-pubdb1.desy.de/record/627757},
}