{"paper":{"title":"Observation of a crossover from nodal to gapped superconductivity in Lu$_x$Zr$_{1-x}$B$_{12}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Chris Baines, Francis L. Pratt, Franziska K. K. Kirschner, Natalya Yu. Shitsevalova, Nikolay E. Sluchanko, Stephen J. Blundell, Vladimir B. Filipov","submitted_at":"2018-04-16T12:01:06Z","abstract_excerpt":"We have determined the superconducting and magnetic properties of four samples of Lu$_x$Zr$_{1-x}$B$_{12}$ ($x=0.04$, $0.07$, $0.17$, and $0.8$) using muon spin rotation ($\\mu$SR) and magnetometry measurements. We observed a strong magnetic signal in both the $\\mu$SR and magnetometry data in one sample ($x=0.07$), likely caused by the formation of static moments of size $\\approx 1\\,\\mu_{\\rm B}$ due to a clustering effect of the Lu$^{3+}$ ions. In all other samples, we find only a small magnetic signal in the $\\mu$SR data thought to originate from boron nuclei in the B$_{12}$ cages. The superco"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.05626","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"}