Markus Braden, Xiao Wang, Alexandre Bertin, Paul Steffens, Yixi Su
{"title":"Direct evidence for anisotropic magnetic interaction in $α$-RuCl$_3$ from polarized inelastic neutron scattering","authors":"Markus Braden, Xiao Wang, Alexandre Bertin, Paul Steffens, Yixi Su","doi":"arxiv-2409.08854","DOIUrl":null,"url":null,"abstract":"Polarized neutron scattering experiments reveal the anisotropy of magnetic\ncorrelations in the candidate Kitaev material $\\alpha$-RuCl$_3$. The anisotropy\nof the inelastic response at the magnetic Bragg positions is just opposite to\nthe expectation for a simple Heisenberg model. Near the antiferromagnetic $q$\nvector, there are no low-energy transversal magnon modes directly documenting\nthe fully anisotropic and bond-directional character of the magnetic\ninteraction in $\\alpha$-RuCl$_3$. However, other findings disagree with a\nsimple or strongly dominant Kitaev component.","PeriodicalId":501171,"journal":{"name":"arXiv - PHYS - Strongly Correlated Electrons","volume":"11 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Strongly Correlated Electrons","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.08854","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Polarized neutron scattering experiments reveal the anisotropy of magnetic
correlations in the candidate Kitaev material $\alpha$-RuCl$_3$. The anisotropy
of the inelastic response at the magnetic Bragg positions is just opposite to
the expectation for a simple Heisenberg model. Near the antiferromagnetic $q$
vector, there are no low-energy transversal magnon modes directly documenting
the fully anisotropic and bond-directional character of the magnetic
interaction in $\alpha$-RuCl$_3$. However, other findings disagree with a
simple or strongly dominant Kitaev component.