Low-energy spin dynamics of orthoferrites AFeO3 (A = Y, La, Bi)

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dc.contributor.authorKisoo ParK-
dc.contributor.authorHasung Sim-
dc.contributor.authorJonathan C Leiner-
dc.contributor.authorYoshiyuki Yoshida-
dc.contributor.authorJaehong Jeong-
dc.contributor.authorShin-ichiro Yano-
dc.contributor.authorJason Gardner-
dc.contributor.authorPhilippe Bourges-
dc.contributor.authorMilan Klicpera-
dc.contributor.authorVladimír Sechovský-
dc.contributor.authorMartin Boehm-
dc.contributor.authorJe-Geun Park-
dc.date.available2018-07-18T02:07:51Z-
dc.date.created2018-06-26-
dc.date.issued2018-06-
dc.identifier.issn0953-8984-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/4744-
dc.description.abstractYFeO3 and LaFeO3 are members of the rare-earth orthoferrites family with Pbnm space group. Using inelastic neutron scattering, the low-energy spin excitations have been measured around the magnetic Brillouin zone center. Splitting of magnon branches and finite magnon gaps (∼2 meV) are observed for both compounds, where the Dzyaloshinsky-Moriya interactions account for most of this gap with some additional contribution from single-ion anisotropy. We also make comparisons with multiferroic BiFeO3 (R3c space group), in which similar behavior was observed. By taking into account all relevant local Dzyaloshinsky-Moriya interactions, our analysis allows for the precise determination of all experimentally observed parameters in the spin-Hamiltonian. We find that different properties of the Pbnm and R3c space group lead to the stabilization of a spin cycloid structure in the latter case but not in the former, which explains the difference in the levels of complexity of magnon band structures for the respective compounds. © 2018 IOP Publishing Ltd-
dc.languageENG-
dc.publisherIOP PUBLISHING LTD-
dc.titleLow-energy spin dynamics of orthoferrites AFeO3 (A = Y, La, Bi)-
dc.typeArticle-
dc.type.rimsA-
dc.identifier.wosid000450228500001-
dc.identifier.scopusid2-s2.0-85048143482-
dc.date.tcdate2018-06-26-
dc.date.scptcdate2018-10-01-
dc.subject.keywordDzyaloshinskiiMoriya interaction-
dc.subject.keywordferrites-
dc.subject.keywordinelastic neutron scattering-
dc.subject.keywordmultiferroics-
dc.subject.keywordweak ferromagnetism-
dc.contributor.affiliatedAuthorKisoo ParK-
dc.contributor.affiliatedAuthorJe-Geun Park-
dc.identifier.bibliographicCitationJournal of Physics Condensed Matter, v.30, no.23, pp.235802 --
dc.description.scptc1-
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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