Magnon Breakdown in a Two Dimensional Triangular Lattice Heisenberg Antiferromagnet of Multiferroic LuMnO3
DC Field | Value | Language |
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dc.contributor.author | Joosung Oh | - |
dc.contributor.author | Manh Duc Le | - |
dc.contributor.author | Jaehong Jeong | - |
dc.contributor.author | Lee, JH (Lee, Jung-hyun) | - |
dc.contributor.author | Woo, H (Woo, Hyungje) | - |
dc.contributor.author | Song, WY (Song, Wan-Young) | - |
dc.contributor.author | Perring, TG (Perring, T. G.) | - |
dc.contributor.author | Buyers, WJL (Buyers, W. J. L. | - |
dc.contributor.author | Cheong, SW (Cheong, S. -W.) | - |
dc.contributor.author | Je Geun Park | - |
dc.date.available | 2015-04-20T06:30:19Z | - |
dc.date.created | 2014-09-30 | - |
dc.date.issued | 2013-12 | - |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | https://pr.ibs.re.kr/handle/8788114/1192 | - |
dc.description.abstract | The breakdown of magnons, the quasiparticles of magnetic systems, has rarely been seen. By using an inelastic neutron scattering technique, we report the observation of spontaneous magnon decay in multiferroic LuMnO3, a simple two dimensional Heisenberg triangular lattice antiferromagnet, with large spin S = 2. The origin of this rare phenomenon lies in the nonvanishing cubic interaction between magnons in the spin Hamiltonian arising from the noncollinear 120 degrees spin structure. We observed all three key features of the nonlinear effects as theoretically predicted: a rotonlike minimum, a flat mode, and a linewidth broadening, in our inelastic neutron scattering measurements of single crystal LuMnO3. Our results show that quasiparticles in a system hitherto thought of as ‘‘classical’’ can indeed break down. (c) 2013 American Physical Society | - |
dc.description.uri | 1 | - |
dc.language | 영어 | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Magnon Breakdown in a Two Dimensional Triangular Lattice Heisenberg Antiferromagnet of Multiferroic LuMnO3 | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.identifier.wosid | 000328884000013 | - |
dc.identifier.scopusid | 2-s2.0-84890676101 | - |
dc.identifier.rimsid | 4973 | ko |
dc.date.tcdate | 2018-10-01 | - |
dc.contributor.affiliatedAuthor | Joosung Oh | - |
dc.contributor.affiliatedAuthor | Manh Duc Le | - |
dc.contributor.affiliatedAuthor | Jaehong Jeong | - |
dc.contributor.affiliatedAuthor | Je Geun Park | - |
dc.identifier.doi | 10.1103/PhysRevLett.111.257202 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW LETTERS, v.111, no.25, pp.257202 | - |
dc.citation.title | PHYSICAL REVIEW LETTERS | - |
dc.citation.volume | 111 | - |
dc.citation.number | 25 | - |
dc.citation.startPage | 257202 | - |
dc.date.scptcdate | 2018-10-01 | - |
dc.description.wostc | 26 | - |
dc.description.scptc | 26 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | QUANTUM SPIN LIQUID | - |
dc.subject.keywordPlus | SUPERCONDUCTORS | - |
dc.subject.keywordPlus | TRANSITION | - |