{"paper":{"title":"Nonreciprocal impurity scattering as a probe for pairing symmetries in kagome superconductors","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Two magnetic impurities produce distinct spectral patterns that identify time-reversal symmetry breaking in kagome superconductor pairings.","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Hao Du, Hong-Min Jiang, Shun-Li Yu","submitted_at":"2026-05-16T11:35:55Z","abstract_excerpt":"The superconducting (SC) pairing symmetry and its link to time-reversal symmetry breaking (TRSB) in the vanadium-based kagome superconductors remain unresolved, with ambiguities stemming from sublattice interference and charge-density-wave (CDW) entanglement with superconductivity. Using two representative SC pairings, i.e., the conventional on-site $s$-wave and the TRSB $d_{x^2-y^2}+id_{xy}$-wave, as a model study, we theoretically show that while single magnetic impurity yield qualitatively identical spectral behavior of local density of states (LDOS) for these two symmetries, two magnetic i"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"For the TRSB d_{x^2-y^2}+id_{xy}-wave pairing, this scattering equivalence holds only for inversion-symmetric impurity configurations, with a pair of YSR disappearance restricted to this case.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The model assumes that the chosen on-site s-wave and d+id pairings are representative of the actual material and that the impurity scattering is dominated by magnetic exchange without significant contributions from other channels or lattice effects.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Two magnetic impurities produce distinct YSR state disappearance patterns in LDOS for s-wave versus d+id pairings, enabling STM discrimination of TRSB in kagome superconductors.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Two magnetic impurities produce distinct spectral patterns that identify time-reversal symmetry breaking in kagome superconductor pairings.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"4ef076fd7b9c53643ea6cbdcdb4c13cdec4de522f9e604d60ff9f0f2a6dffb65"},"source":{"id":"2605.16943","kind":"arxiv","version":1},"verdict":{"id":"72c5e4a0-4d6c-433f-9a04-f1ac5c044eeb","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T18:57:02.466691Z","strongest_claim":"For the TRSB d_{x^2-y^2}+id_{xy}-wave pairing, this scattering equivalence holds only for inversion-symmetric impurity configurations, with a pair of YSR disappearance restricted to this case.","one_line_summary":"Two magnetic impurities produce distinct YSR state disappearance patterns in LDOS for s-wave versus d+id pairings, enabling STM discrimination of TRSB in kagome superconductors.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The model assumes that the chosen on-site s-wave and d+id pairings are representative of the actual material and that the impurity scattering is dominated by magnetic exchange without significant contributions from other channels or lattice effects.","pith_extraction_headline":"Two magnetic impurities produce distinct spectral patterns that identify time-reversal symmetry breaking in kagome superconductor pairings."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.16943/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"cited_work_retraction","ran_at":"2026-05-19T20:21:57.114937Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_title_agreement","ran_at":"2026-05-19T19:31:18.925345Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T19:10:41.672260Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T18:41:56.244580Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T18:33:26.327217Z","status":"skipped","version":"1.0.0","findings_count":0}],"snapshot_sha256":"74923d05397d2e07c6e0eb526dc61e1d568399fcb98a39c38563d6ef979a07e3"},"references":{"count":59,"sample":[{"doi":"","year":null,"title":"single contributions","work_id":"078c2b61-65f9-4b31-bb92-9122806203a4","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"loop contributions","work_id":"b5d50aed-6078-408d-8328-4095b02d36eb","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2007,"title":"Y. Ran, M. Hermele, P. A. Lee, and X.-G. Wen, Projected-wave-function study of the spin- 1/ 2 heisenberg model on the kagom´ e lattice, Phys. Rev. Lett. 98, 117205 (2007)","work_id":"3b791146-0fc1-4023-b7e5-435f2ce59c67","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2008,"title":"H. C. Jiang, Z. Y. Weng, and D. N. Sheng, Density ma- trix renormalization group numerical study of the kagome antiferromagnet, Phys. Rev. Lett. 101, 117203 (2008)","work_id":"83193c7a-5cba-4041-af0b-b61be30b7249","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2011,"title":"S. Yan, D. A. Huse, and S. R. White, Spin-liquid ground state of the S = 1/ 2 kagome heisenberg antiferromagnet, Science 332, 1173 (2011)","work_id":"bc0c3608-e827-42c1-8c58-2c5c2bb1a685","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":59,"snapshot_sha256":"e78346eb8f7f316f9d55bb62fd5837da0341166d0d46c2712f85d6378e714c49","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"f3e8a7a2b6db962300eda285e681031214968d39b6b8a00e4d2226fc225a3879"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}