{"paper":{"title":"Yu-Shiba-Rusinov States in Ising Superconductors","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Magnetic impurities form bound states whose spectra encode the Ising pairing symmetry in 2D superconductors.","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Juan Carlos Cuevas, Michael Hein, Wolfgang Belzig","submitted_at":"2026-05-12T21:11:14Z","abstract_excerpt":"The nature of the superconducting state in two-dimensional transition-metal dichalcogenides remains under active debate. A widely used description invokes so-called Ising superconductivity. In this work, we investigate theoretically this pairing state by employing single magnetic impurities as local probes of the superconducting condensate. We analyze the formation of Yu-Shiba-Rusinov bound states in the presence of Ising spin-orbit coupling and an in-plane magnetic field to study how their spectral properties encode the underlying pairing structure. We identify distinct features in the bound-"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Our results demonstrate that magnetic impurities provide a sensitive probe of the structure of the superconducting state and yield experimentally accessible signatures of unconventional aspects of Ising superconductivity.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The single-impurity theoretical model with Ising spin-orbit coupling and in-plane field fully captures the relevant physics without additional disorder, multi-impurity interactions, or substrate effects that are present in real 2D samples.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Magnetic impurities produce distinct spectral features in Yu-Shiba-Rusinov states that encode and differentiate Ising superconductivity from conventional pairing.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Magnetic impurities form bound states whose spectra encode the Ising pairing symmetry in 2D superconductors.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"6cf615f7cd4d0ee7e2732f10eb2230f1aad588dfa0743a31bad531f054de3b93"},"source":{"id":"2605.12758","kind":"arxiv","version":1},"verdict":{"id":"cfb649e5-da2e-449a-b69d-68d2883ed955","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T19:27:45.525182Z","strongest_claim":"Our results demonstrate that magnetic impurities provide a sensitive probe of the structure of the superconducting state and yield experimentally accessible signatures of unconventional aspects of Ising superconductivity.","one_line_summary":"Magnetic impurities produce distinct spectral features in Yu-Shiba-Rusinov states that encode and differentiate Ising superconductivity from conventional pairing.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The single-impurity theoretical model with Ising spin-orbit coupling and in-plane field fully captures the relevant physics without additional disorder, multi-impurity interactions, or substrate effects that are present in real 2D samples.","pith_extraction_headline":"Magnetic impurities form bound states whose spectra encode the Ising pairing symmetry in 2D superconductors."},"references":{"count":37,"sample":[{"doi":"","year":null,"title":"Consequently, the spin- structure of the hopping matrix is only restricted by hermiticity","work_id":"964702a7-c753-46c1-b987-2e9d1dbed9bf","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"For the three cases of hybridization, the substrate self-energy ˆΣS(ε) acquires different energy-dependent structures in spin- Nambu space","work_id":"93a027ad-4ca0-4d43-8f6a-97df661a8f71","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Maria de Maeztu","work_id":"cafee0dd-efc3-486b-b373-56dd6030990a","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Bound state energies and effective spin-splitting Bound states follow from det (ˆg−1 − ˆΣ) = 0. 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