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@MISC{Hrtl:1032536,
      author       = {Härtl, Patrick and Bode, Matthias and Blügel, Stefan and
                      Härtl, Patrick and Leisegang, Markus and Bihlmayer, Gustav
                      and Vogt, Matthias and Leisegang, Markus and Bihlmayer,
                      Gustav and Blügel, Stefan and Bode, Matthias},
      title        = {{S}pin {S}piral {S}tate at a {F}erromagnetic {G}d {V}acuum
                      {I}nterface},
      publisher    = {University of Würzburg},
      reportid     = {FZJ-2024-06324},
      year         = {2024},
      abstract     = {Centrosymmetric bulk magnets made of layered Gd
                      intermetallics had been discovered recently to exhibit
                      helical spin spirals with a wavelength of ≈2 nm that
                      transform into skyrmion lattices at certain magnetic fields.
                      Here we report on the observation of a spin spiral state at
                      the Gd(0001) surface. Spinpolarized scanning tunneling
                      microscopy images show striped regions with a periodicity of
                      about 2 nm. These stripes rearrange upon application of an
                      external magnetic field, thereby unambiguously confirming
                      their magnetic origin. Density functional theory
                      calculations explain that competing exchange interactions in
                      the surface layer of Gd(0001) together with a magnetovolume
                      fine-tuning of the exchange interaction to the next Gd layer
                      favor a chiral 2 nm conical spin spiral at the surface,
                      arising as a general behavior of the Gd monolayer.},
      keywords     = {Physics (Other) / Spin-polarized scanning tunneling
                      microscopy (Other) / Rare-earth magnetic materials (Other) /
                      Spin Reorientation Transition (Other) / Density functional
                      theory (Other) / Magnetic interactions (Other) / Exchange
                      interaction (Other) / Ferromagnetism (Other)},
      cin          = {PGI-1},
      cid          = {I:(DE-Juel1)PGI-1-20110106},
      pnm          = {5211 - Topological Matter (POF4-521) / SFB 1238 C01 -
                      Strukturinversionsasymmetrische Materie und
                      Spin-Orbit-Phänomene mittels ab initio (C01) (319898210) /
                      DFG project G:(GEPRIS)510676484 - Spinstruktur dünner
                      Seltenerdmetall-Filme (510676484) / DFG project
                      G:(GEPRIS)390858490 - EXC 2147: Komplexität und Topologie
                      in Quantenmaterialien (CT.QMAT) (390858490)},
      pid          = {G:(DE-HGF)POF4-5211 / G:(GEPRIS)319898210 /
                      G:(GEPRIS)510676484 / G:(GEPRIS)390858490},
      typ          = {PUB:(DE-HGF)32},
      doi          = {10.58160/EXFEGUR3WV777F1K},
      url          = {https://juser.fz-juelich.de/record/1032536},
}