{"paper":{"title":"In-plane magnetic penetration depth in Sr$_2$RuO$_4$: muon-spin rotation/relaxation study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Aline Ramires, D. A. Sokolov, Hubertus Luetkens, Ilya Shipulin, Naoki Kikugawa, Rustem Khasanov, Vadim Grinenko, Yoshiteru Maeno, Zurab Guguchia","submitted_at":"2023-05-18T17:46:35Z","abstract_excerpt":"We report on measurements of the in-plane magnetic penetration depth ($\\lambda_{\\rm ab}$) in single crystals of Sr$_2$RuO$_4$ down to $\\simeq 0.015$ K by means of muon-spin rotation/relaxation. The linear temperature dependence of $\\lambda^{-2}_{\\rm ab}$ for $T\\lesssim 0.7$ K suggests the presence of nodes in the superconducting gap. This statement is further substantiated by observation of the Volovik effect, $i.e.$ the reduction of $\\lambda_{ab}^{-2}$ as a function of the applied magnetic field. The experimental zero-field and zero-temperature value of $\\lambda_{\\rm ab}=124(3)$ nm agrees wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.11156","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2305.11156/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}