{"paper":{"title":"Coexisting spin resonance and long-range magnetic order of Eu in EuRbFe$_4$As$_4$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. D. Christianson, A. Iyo, A. Nakao, D. Kagerbauer, H. Eisaki, H. Nakamura, H. Yoshida, K. Iida, K. Kawashima, K. Munakata, M. Eisterer, M. Ishikado, N. Murai, S. Ishida, Y. Inamura, Y. Nagai, Y. Yoshida","submitted_at":"2019-07-08T20:02:22Z","abstract_excerpt":"Magnetic excitations and magnetic structure of EuRbFe$_4$As$_4$ were investigated by inelastic neutron scattering (INS), neutron diffraction, and random phase approximation (RPA) calculations. Below the superconducting transition temperature $T_\\text{c}=36.5$~K, the INS spectra exhibit the neutron spin resonances at $Q_\\text{res}=1.27(2)$~$\\text{\\AA}^{-1}$ and $1.79(3)$~$\\text{\\AA}^{-1}$. They correspond to the $\\mathbf{Q}=(0.5,0.5,1)$ and $(0.5,0.5,3)$ nesting wave vectors, showing three dimensional nature of the band structure. The characteristic energy of the neutron spin resonance is $E_\\t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.03839","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}