dc.contributor.author | Poimanov, VD | |
dc.contributor.author | Kuchko, AN | |
dc.contributor.author | Kruglyak, VV | |
dc.date.accessioned | 2020-10-05T13:33:40Z | |
dc.date.issued | 2020-09-10 | |
dc.description.abstract | We have calculated the scattering (reflection and transmission) coefficients of linear exchange spin waves
normally incident upon a helimagnetic layer sandwiched between two semi-infinite ferromagnetic media. Our
calculations show that, despite the helimagnetic order induced in the layer by the Dzyaloshinskii-Moriya
interaction (DMI), the scattering is reciprocal and insensitive to the presence of the helimagnetic order in the
layer. This comes as a result of the disappearance of the DMI from the boundary conditions in the considered
geometry under the small-amplitude approximation and from the specific form of the nonreciprocity of the
spin-wave dispersion relation in the helimagnetic material. We show that the helimagnetic layer’s interfaces act
as a system of two semicrossed polarizers for the circularly polarized spin waves incident from the ferromagnetic
media. This results from the ellipticity of the magnetic precession induced by the easy-plane anisotropy in the
helimagnetic layer. Our calculations also reveal the importance of evanescent solutions to correctly describe
the spin-wave scattering in samples with elliptical precession. Our findings will aid development of magnonic
devices containing helimagnetic constituents. | en_GB |
dc.description.sponsorship | European Union’s Horizon 2020 | en_GB |
dc.identifier.citation | Vol. 102: 104414 | en_GB |
dc.identifier.doi | 10.1103/PhysRevB.102.104414 | |
dc.identifier.grantnumber | 644348 (MagIC) | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/123097 | |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.rights | ©2020 American Physical Society | en_GB |
dc.title | Scattering of exchange spin waves from a helimagnetic layer sandwiched between two semi-infinite ferromagnetic media | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2020-10-05T13:33:40Z | |
dc.identifier.issn | 2469-9950 | |
exeter.article-number | ARTN 104414 | en_GB |
dc.description | This is the final version. Available from the publisher via the DOI in this record. | en_GB |
dc.identifier.journal | Physical Review B | en_GB |
dc.rights.uri | http://www.rioxx.net/licenses/all-rights-reserved | en_GB |
dcterms.dateAccepted | 2020-08-19 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2020-09-10 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2020-10-05T13:27:53Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2020-10-05T13:33:43Z | |
refterms.panel | B | en_GB |