Polarized inelastic neutron scattering of nonreciprocal spin waves in MnSi

  title={Polarized inelastic neutron scattering of nonreciprocal spin waves in MnSi},
  author={T. Weber and Johannes Waizner and Paul Steffens and Axel Bauer and Christian Pfleiderer and Markus Garst and P. B{\"o}ni},
  journal={Physical Review B},
We report spin-polarized inelastic neutron scattering of the dynamical structure factor of the conical magnetic helix in the cubic chiral magnet MnSi. We find that the spectral weight of spin-flip scattering processes is concentrated on single branches for wavevector transfer parallel to the helix axis as inferred from well-defined peaks in the neutron spectra. In contrast, for wavevector transfers perpendicular to the helix the spectral weight is distributed among different branches of the… 

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