{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/field-dependence-of-non-reciprocal-magnons-in","title":"Field dependence of non-reciprocal magnons in chiral MnSi","arxiv_id":"1708.02098","date":"2017-08-07","proceeding":null,"authors":["Tobias Weber","Johannes Waizner","Gregory Tucker","Robert Georgii","Max Kugler","Andreas Bauer","Christian Pfleiderer","Markus Garst","Peter Böni"],"abstract":"Spin waves in chiral magnetic materials are strongly influenced by the Dzyaloshinskii-Moriya interaction resulting in intriguing phenomena like non-reciprocal magnon propagation and magnetochiral dichroism. Here, we study the non-reciprocal magnon spectrum of the archetypical chiral magnet MnSi and its evolution as a function of magnetic field covering the field-polarized and conical helix phase. Using inelastic neutron scattering, the magnon energies and their spectral weights are determined quantitatively after deconvolution with the instrumental resolution. In the field-polarized phase the imaginary part of the dynamical susceptibility $\\chi''(\\varepsilon, {\\bf q})$ is shown to be asymmetric with respect to wavevectors ${\\bf q}$ longitudinal to the applied magnetic field ${\\bf H}$, which is a hallmark of chiral magnetism. In the helimagnetic phase, $\\chi''(\\varepsilon, {\\bf q})$ becomes increasingly symmetric with decreasing ${\\bf H}$ due to the formation of helimagnon bands and the activation of additional spinflip and non-spinflip scattering channels. The neutron spectra are in excellent quantitative agreement with the low-energy theory of cubic chiral magnets with a single fitting parameter being the damping rate of spin waves.","url_abs":"https://arxiv.org/abs/1708.02098v2","url_pdf":"https://arxiv.org/pdf/1708.02098v2.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"field-dependence-of-non-reciprocal-magnons-in","repo_url":"https://code.ill.fr/scientific-software/takin/plugins/mnsi","is_official":1,"mentioned_in_paper":0,"mentioned_in_github":0,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}