{"paper":{"title":"Enhancement of Tc by point-like disorder and anisotropic gap in FeSe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. E. B\\\"ohmer, J. Gonzales, K. Cho, M. A. Tanatar, O. Cavani, P. C. Canfield, P. J. Hirschfeld, R. Prozorov, S. L. Bud'ko, S. Teknowijoyo, V. Mishra","submitted_at":"2016-05-13T13:23:00Z","abstract_excerpt":"A highly anisotropic superconducting gap is found in single crystals of FeSe by studying the London penetration depth, $\\Delta \\lambda$, measured down to 50 mK in samples before and after 2.5 MeV electron irradiation. The gap minimum increases with introduced point - like disorder, indicating the absence of symmetry - imposed nodes. Surprisingly, the superconducting transition temperature, $T_c$, \\textit{increases} by 0.4 K from $T_{c0} \\approx$ 8.8 K while the structural transition temperature, $T_s$, \\textit{decreases} by 0.9 K from $T_{s0} \\approx$91.2 K after electron irradiation. We discu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1605.04170","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"}