{"paper":{"title":"Experimental determination of superconducting parameters for the intermetallic perovskite superconductor ${\\text {MgCNi}}_3","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"I. G. Deac, K. A. Regan, K. D. Nelson, K. Wu, M. M. Rosario, P. Schiffer, R. J. Cava, T. He, Y. Liu, Z. Q. Mao","submitted_at":"2001-05-14T19:35:20Z","abstract_excerpt":"We have measured upper-critical-field $H_{\\text c2}$, specific heat C, and tunneling spectra of the intermetallic perovskite superconductor MgCNi${}_3$ with a superconducting transition temperature $T_{\\text c}\\approx 7.6$ K. Based on these measurements and relevant theoretical relations, we have evaluated various superconducting parameters for this material, including the thermodynamic critical field $H_{\\text c}$(0), coherence length $\\xi$(0), penetration depth $\\lambda$(0), lower-critical-field $H_{\\text c1}$(0), and Ginsberg-Landau parameter $\\kappa$(0). From the specific heat, we obtain t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0105280","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"}