{"paper":{"title":"Crossover from Collective to Incoherent Spin Excitations in Superconducting Cuprates Probed by Detuned Resonant Inelastic X-ray Scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Damascelli, B. Keimer, D. A. Bonn, D. C. Peets, F. Yakhou, G. Dellea, G. Ghiringhelli, H. Gretarsson, J. Pelliciari, L. Braicovich, L. Chauviere, M. Dantz, M. Le Tacon, M. Minola, M. W. Haverkort, N.B. Brookes, P. Dosanjh, R. Liang, T. Schmitt, X. J. Zhou, X. Lu, X. Sun, Y. Ding, Y. Lu, Y. Y. Peng","submitted_at":"2017-08-02T09:30:09Z","abstract_excerpt":"Spin excitations in the overdoped high temperature superconductors Tl$_2$Ba$_2$CuO$_{6+\\delta}$ and (Bi,Pb)$_2$(Sr,La)$_{2}$CuO$_{6+\\delta}$ were investigated by resonant inelastic x-ray scattering (RIXS) as functions of doping and detuning of the incoming photon energy above the Cu-$L_3$ absorption peak. The RIXS spectra at optimal doping are dominated by a paramagnon feature with peak energy independent of photon energy, similar to prior results on underdoped cuprates. Beyond optimal doping, the RIXS data indicate a sharp crossover to a regime with a strong contribution from incoherent parti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.00663","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"}