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@ARTICLE{Miao:1024256,
      author       = {Miao, H. and Bouaziz, Juba and Fabbris, G. and Meier, W. R.
                      and Yang, F. Z. and Li, H. X. and Nelson, C. and Vescovo, E.
                      and Zhang, S. and Christianson, A. D. and Lee, H. N. and
                      Zhang, Y. and Batista, C. D. and Blügel, S.},
      title        = {{S}pontaneous {C}hirality {F}lipping in an {O}rthogonal
                      {S}pin-{C}harge {O}rdered {T}opological {M}agnet},
      journal      = {Physical review / X},
      volume       = {14},
      number       = {1},
      issn         = {2160-3308},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2024-02063},
      pages        = {011053},
      year         = {2024},
      abstract     = {The asymmetric distribution of chiral objects with opposite
                      chirality is of great fundamental interest ranging from
                      molecular biology to particle physics. In quantum materials,
                      chiral states can build on inversion-symmetry-breaking
                      lattice structures or emerge from spontaneous magnetic
                      ordering induced by competing interactions. Although the
                      handedness of a chiral state can be changed through external
                      fields, a spontaneous chirality flipping has yet to be
                      discovered. We present experimental evidence of chirality
                      flipping via changing temperature in a topological magnet
                      EuAl4, which features orthogonal spin density waves (SDW)
                      and charge density waves (CDW). Using circular dichroism of
                      Bragg peaks in the resonant magnetic x-ray scattering, we
                      find that the chirality of the helical SDW flips through a
                      first-order phase transition with modified SDW wavelength.
                      Intriguingly, we observe that the CDW couples strongly with
                      the SDW and displays a rare commensurate-to-incommensurate
                      transition at the chirality flipping temperature. Combining
                      with first-principles calculations and angle-resolved
                      photoemission spectroscopy, our results support a Fermi
                      surface origin of the helical SDW with intertwined spin,
                      charge, and lattice degrees of freedom in EuAl4. Our results
                      reveal an unprecedented spontaneous chirality flipping and
                      lay the groundwork for a new functional manipulation of
                      chirality through momentum-dependent spin-charge-lattice
                      interactions.},
      cin          = {PGI-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-1-20110106},
      pnm          = {5211 - Topological Matter (POF4-521) / 3D MAGiC -
                      Three-dimensional magnetization textures: Discovery and
                      control on the nanoscale (856538) / SFB 1238 C01 -
                      Strukturinversionsasymmetrische Materie und
                      Spin-Orbit-Phänomene mittels ab initio (C01) (319898210) /
                      DFG project 403503315 - Grenzflächenstabilisierte
                      Skyrmionen in Oxidstrukturen für die Skyrmionik
                      (403503315)},
      pid          = {G:(DE-HGF)POF4-5211 / G:(EU-Grant)856538 /
                      G:(GEPRIS)319898210 / G:(GEPRIS)403503315},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001195847000002},
      doi          = {10.1103/PhysRevX.14.011053},
      url          = {https://juser.fz-juelich.de/record/1024256},
}