Non-reciprocal magnons in non-centrosymmetric MnSi

Abstract

Using two cold-neutron triple-axis spectrometers we have succeeded in fully mapping out the field-dependent evolution of the non-reciprocal magnon dispersion relations in all magnetic phases of MnSi. The non-reciprocal nature of the dispersion manifests itself in a full asymmetry (non-reciprocity) of the dynamical structure factor $S(q,E,{\mu }_0{H}_{int})$ with respect to flipping either the direction of the applied magnetic field ${\mu }_0{H}_{int}$, the reduced momentum transfer $q$, or the energy transfer $E$.

arXiv commentContribution to the International Conference on Magnetism 2018. 5 pages, 4 figures

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Cited by in corpus (6)

• Chiral properties of the zero-field spiral state and field-induced magnetic phases of the itinerant kagome metal YMn${}_6$Sn${}_6$
• Topological magnon band structure of emergent Landau levels in a skyrmion lattice
• Nonreciprocity of spin waves in noncollinear magnets due to the Dzyaloshinskii-Moriya interaction
• Polarized inelastic neutron scattering of non-reciprocal spin waves in MnSi
• Confined dipole and exchange spin waves in a bulk chiral magnet with Dzyaloshinskii-Moriya interaction
• Universal spin wave damping in magnetic Weyl semimetals