Spin dynamics and magnetoelectric coupling mechanism of Co4Nb2O9

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dc.contributor.authorDeng, GCen_AU
dc.contributor.authorCao, YMen_AU
dc.contributor.authorRen, Wen_AU
dc.contributor.authorCao, SXen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorGauthier, Nen_AU
dc.contributor.authorKenzelmann, Men_AU
dc.contributor.authorDavidson, Gen_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorGardner, JSen_AU
dc.contributor.authorImperia, Pen_AU
dc.contributor.authorUlrich, Cen_AU
dc.contributor.authorMcIntyre, GJen_AU
dc.date.accessioned2021-12-17T02:24:07Zen_AU
dc.date.available2021-12-17T02:24:07Zen_AU
dc.date.issued2018-02-28en_AU
dc.date.statistics2021-11-30en_AU
dc.description.abstractNeutron powder diffraction experiments reveal that Co4Nb2O9 forms a noncollinear in-plane magnetic structure with Co2+ moments lying in the ab plane. The spin-wave excitations of this magnet were measured by using inelastic neutron scattering and soundly simulated by a dynamic model involving nearest- and next-nearest-neighbor exchange interactions, in-plane anisotropy, and the Dzyaloshinskii-Moriya interaction. The in-plane magnetic structure of Co4Nb2O9 is attributed to the large in-plane anisotropy, while the noncollinearity of the spin configuration is attributed to the Dzyaloshinskii-Moriya interaction. The high magnetoelectric coupling effect of Co4Nb2O9 in fields can be explained by its special in-plane magnetic structure. ©2018 American Physical Societyen_AU
dc.identifier.articlenumber85154en_AU
dc.identifier.citationDeng, G., Cao, Y., Ren, W., Cao, S., Studer, A. J., Gauthier, N., Kenzelmann, M., Davidson, G., Rule, K. C., Gardner, J. S., Imperia, P., Ulrich, C., & McIntyre, G. J. (2018). Spin dynamics and magnetoelectric coupling mechanism of Co4Nb2O9. Physical Review B, 97(8), 085154. doi:10.1103/PhysRevB.97.085154en_AU
dc.identifier.issn2469-9969en_AU
dc.identifier.issue8en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttps://doi.org/10.1103/PhysRevB.97.085154en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12536en_AU
dc.identifier.volume97en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectMagnetismen_AU
dc.subjectPhase transformationsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectSpin wavesen_AU
dc.subjectInelastic scatteringen_AU
dc.titleSpin dynamics and magnetoelectric coupling mechanism of Co4Nb2O9en_AU
dc.typeJournal Articleen_AU
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