{"paper":{"title":"Nodeless two-gap superconductivity in stoichiometric iron pnictide LiFeAs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"H. Kim, M. A. Tanatar, R. Prozorov, Yong Seung Kwon, Yoo Jang Song","submitted_at":"2010-08-19T09:20:33Z","abstract_excerpt":"The variations of in- and inter- plane London penetration depths, $\\Delta\\lambda(T)$, were measured using a tunnel diode resonator in single crystals of the intrinsic pnictide superconductor LiFeAs. This compound appears to be in the clean limit with a residual resistivity of 4 ($T\\to0$) to 8 ($T_c$) $\\mu \\Omega\\cdot$cm and $RRR$ of 65 to 35, respectively. The superfluid density, $\\rho_s(T)=\\lambda^2(0)/\\lambda^2(T)$, is well described by the self-consistent two-gap $\\gamma-$model. Together with the previous data, our results support the universal evolution of the superconducting gap from node"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.3251","kind":"arxiv","version":3},"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"}