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@INPROCEEDINGS{Guasco:1031855,
      author       = {Guasco, Laura and Khaydukov, Yury N. and Keller, Thomas and
                      Saerbeck, Thomas and Pütter, Sabine},
      title        = {{H}ydrogen absorption induced switching of the easy axis in
                      {P}t/{C}o/{P}t},
      reportid     = {FZJ-2024-05866},
      year         = {2024},
      abstract     = {Pt/Co/Pt heterostructures with perpendicular magnetic
                      anisotropy (PMA) are traditionally used for magnetic
                      recording to achieve high magnetic data storage density. PMA
                      can be tuned by e.g. thin film thickness, strain, ion
                      bombardment or temperature. Recently, it has been shown that
                      the absorption of hydrogen in the heavy metal modifies the
                      interfacial spin-orbit coupling and hence reduces the PMA
                      [1, 2, 3]. As a result, magnetic hydrogen sensing can be
                      performed, which was studied in an all-solid-state device
                      and achieves in a Co/GdOx thin film system reversible and
                      non-destructive toggling of magnetic anisotropy at room
                      temperature. [4]Polarized neutron reflectivity is an
                      effective tool for studying the hydrogen uptake and its
                      impact on the magnetic properties in PMA systems. [2, 5]
                      Recently, resonance enhanced polarized neutron reflectometry
                      (RNR) has proven to be a quantitative method for the
                      determination of the hydrogen concentration with high time
                      resolution. [Guas22]In this contribution we will study the
                      impact of hydrogen uptake on the spin reorientation
                      transition in polycrystalline Pt/Co/Pt trilayers sandwiched
                      by 25 nm Nb layers on MgO(001) substrates fabricated by
                      molecular beam epitaxy and relate it to the hydrogen
                      concentration. The feasibility of the Pt/Co/Pt trilayers
                      will be discussed. [1] S. M. Valvidares, et al., Phys. Rev.
                      B 81, (2010) 024415[2] K. Munbodh, et al., Phys. Rev. B 83
                      (2011) 094432[3] C. S. Chang, M. Kostylev and E. Ivanov,
                      Appl. Phys. Lett. 102 (2013) 142405[4] A. J. Tan et al.
                      Nature Materials 18 (2019) 35[5] G. Causer et al., ACS Appl.
                      Mater. Interfaces 38 (2019) 35420[6] L. Guasco et al.,
                      Nature Comm. 13 (2022) 1486},
      month         = {Jul},
      date          = {2024-07-07},
      organization  = {International Colloquium on Magnetic
                       Films and Surfaces, Perugia (Italy), 7
                       Jul 2024 - 12 Jul 2024},
      subtyp        = {After Call},
      cin          = {JCNS-4 / JCNS-FRM-II / MLZ},
      cid          = {I:(DE-Juel1)JCNS-4-20201012 /
                      I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      experiment   = {EXP:(DE-MLZ)MBE-MLZ-20151210},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1031855},
}