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@ARTICLE{DosSantos:888595,
      author       = {Dos Santos, Flaviano José and dos Santos Dias, Manuel and
                      Lounis, Samir},
      title        = {{N}onreciprocity of spin waves in noncollinear magnets due
                      to the {D}zyaloshinskii-{M}oriya interaction},
      journal      = {Physical review / B},
      volume       = {102},
      number       = {10},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2020-05051},
      pages        = {104401},
      year         = {2020},
      abstract     = {Broken inversion symmetry in combination with the
                      spin-orbit interaction generates a finite
                      Dzyaloshinskii-Moriya interaction (DMI), which can induce
                      noncollinear spin textures of chiral nature. The DMI is
                      characterized by an interaction vector whose magnitude,
                      direction, and symmetries are crucial to determine the
                      stability of various spin textures, such as skyrmions and
                      spin spirals. The DMI can be measured from the
                      nonreciprocity of spin waves in ferromagnets, which can be
                      probed via inelastic scattering experiments. In a
                      ferromagnet, the DMI can modify the spin-wave dispersion,
                      moving its minimum away from the Γ point. Spin waves
                      propagating with opposite wave vectors are then
                      characterized by different group velocities, energies, and
                      lifetimes, defining their nonreciprocity. Here, we address
                      the case of complex spin textures, where the manifestation
                      of DMI-induced chiral asymmetries remains to be explored. We
                      discuss such nonreciprocal effects and propose ways of
                      accessing the magnitude and direction of the DMI vectors in
                      the context of spin-polarized or spin-resolved inelastic
                      scattering experiments. We show that only when a periodic
                      magnetic system has finite net magnetization, that is, when
                      the vector sum of all magnetic moments is nonzero, can it
                      present a total nonreciprocal spin-wave spectrum. However,
                      even zero-net-magnetization systems, such as collinear
                      antiferromagnets and cycloidal spin spirals, can have
                      spin-wave modes that are individually nonreciprocal, while
                      the total spectrum remains reciprocal.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142) /
                      First-principles investigation of single magnetic
                      nano-skyrmions $(jias17_20190501)$},
      pid          = {G:(DE-HGF)POF3-142 / $G:(DE-Juel1)jias17_20190501$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000564477500002},
      doi          = {10.1103/PhysRevB.102.104401},
      url          = {https://juser.fz-juelich.de/record/888595},
}