{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2004:OLPQKUAFNMK6R5NT4H77EBA3VA","short_pith_number":"pith:OLPQKUAF","schema_version":"1.0","canonical_sha256":"72df0550056b15e8f5b3e1fff2041ba832447a2e1955a6627720d54eb737a88f","source":{"kind":"arxiv","id":"cond-mat/0402001","version":1},"attestation_state":"computed","paper":{"title":"High-field superconductivity in alloyed MgB2 thin films","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Gurevich, A. Pogrebnyakov, B. Moeckly, B. T. Liu, B. Wilkens, C.B. Eom, C. Ferdeghini, C. Tarantini, D.C. Larbalestier, D. Marre, E. Haanappel, J.E. Giencke, J. Kim, J. M. Redwing, J. Rowell, M.C. Jewell, M. Putti, N. Newman, Qi Li, R. Gandikota, R.K. Singh, R. Vaglio, V. Braccini, V. Ferrando, X.X. Xi, Y. Cui, Y. F.Hu","submitted_at":"2004-01-30T21:07:03Z","abstract_excerpt":"We investigated the effect of alloying on the upper critical field $H_{c2}$ in 12 $MgB_2$ films, in which disorder was introduced by growth, carbon doping or He-ion irradiation, finding a significant $H_{c2}$ enhancement in C-alloyed films, and an anomalous upward curvature of $H_{c2}(T)$. Record high values of $H_{c2}^{\\perp}(4.2) \\simeq 35T$ and $H_{c2}\\|(4.2) \\simeq 51T$ were observed perpendicular and parallel to the ab plane, respectively. The temperature dependence of $H_{c2}(T)$ is described well by a theory of dirty two-gap superconductivity. Extrapolation of the experimental data to T"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"cond-mat/0402001","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2004-01-30T21:07:03Z","cross_cats_sorted":[],"title_canon_sha256":"c2be939ed39d25ae0514130f344f94ed820b944ea29e7dadfa29a52482557142","abstract_canon_sha256":"6ff27aa4a9b0190695d87da60a3c13599e9a43a0e2a54fc6e144930d58b8a0fe"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:45:43.714782Z","signature_b64":"je/XWduTI02dlKyk30azwr0HsLwDFG4Qm+/JOQsJR5YoFfQURQy2o9fvmVASdqHYb6JIbXUBNRLfn5eFGEJJBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72df0550056b15e8f5b3e1fff2041ba832447a2e1955a6627720d54eb737a88f","last_reissued_at":"2026-07-04T16:45:43.714146Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:45:43.714146Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-field superconductivity in alloyed MgB2 thin films","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"A. Gurevich, A. Pogrebnyakov, B. Moeckly, B. T. Liu, B. Wilkens, C.B. Eom, C. Ferdeghini, C. Tarantini, D.C. Larbalestier, D. Marre, E. Haanappel, J.E. Giencke, J. Kim, J. M. Redwing, J. Rowell, M.C. Jewell, M. Putti, N. Newman, Qi Li, R. Gandikota, R.K. Singh, R. Vaglio, V. Braccini, V. Ferrando, X.X. Xi, Y. Cui, Y. F.Hu","submitted_at":"2004-01-30T21:07:03Z","abstract_excerpt":"We investigated the effect of alloying on the upper critical field $H_{c2}$ in 12 $MgB_2$ films, in which disorder was introduced by growth, carbon doping or He-ion irradiation, finding a significant $H_{c2}$ enhancement in C-alloyed films, and an anomalous upward curvature of $H_{c2}(T)$. Record high values of $H_{c2}^{\\perp}(4.2) \\simeq 35T$ and $H_{c2}\\|(4.2) \\simeq 51T$ were observed perpendicular and parallel to the ab plane, respectively. The temperature dependence of $H_{c2}(T)$ is described well by a theory of dirty two-gap superconductivity. Extrapolation of the experimental data to T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0402001","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/cond-mat/0402001/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0402001","created_at":"2026-07-04T16:45:43.714246+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0402001v1","created_at":"2026-07-04T16:45:43.714246+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0402001","created_at":"2026-07-04T16:45:43.714246+00:00"},{"alias_kind":"pith_short_12","alias_value":"OLPQKUAFNMK6","created_at":"2026-07-04T16:45:43.714246+00:00"},{"alias_kind":"pith_short_16","alias_value":"OLPQKUAFNMK6R5NT","created_at":"2026-07-04T16:45:43.714246+00:00"},{"alias_kind":"pith_short_8","alias_value":"OLPQKUAF","created_at":"2026-07-04T16:45:43.714246+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA","json":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA.json","graph_json":"https://pith.science/api/pith-number/OLPQKUAFNMK6R5NT4H77EBA3VA/graph.json","events_json":"https://pith.science/api/pith-number/OLPQKUAFNMK6R5NT4H77EBA3VA/events.json","paper":"https://pith.science/paper/OLPQKUAF"},"agent_actions":{"view_html":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA","download_json":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA.json","view_paper":"https://pith.science/paper/OLPQKUAF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0402001&json=true","fetch_graph":"https://pith.science/api/pith-number/OLPQKUAFNMK6R5NT4H77EBA3VA/graph.json","fetch_events":"https://pith.science/api/pith-number/OLPQKUAFNMK6R5NT4H77EBA3VA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA/action/storage_attestation","attest_author":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA/action/author_attestation","sign_citation":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA/action/citation_signature","submit_replication":"https://pith.science/pith/OLPQKUAFNMK6R5NT4H77EBA3VA/action/replication_record"}},"created_at":"2026-07-04T16:45:43.714246+00:00","updated_at":"2026-07-04T16:45:43.714246+00:00"}