{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:65G7AWAG7CXPIOMATLGBMJ4NPI","short_pith_number":"pith:65G7AWAG","schema_version":"1.0","canonical_sha256":"f74df05806f8aef439809acc16278d7a1a60dd5157608d58d8441b26d603bdfc","source":{"kind":"arxiv","id":"1310.4623","version":1},"attestation_state":"computed","paper":{"title":"Achievement of practical level critical current densities in PIT Ba1-xKxFe2As2/Ag tapes by conventional cold mechanical deformation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Akiyoshi Matsumoto, Hiroaki Kumakura, Kazumasa Togano, Zhaoshun Gao","submitted_at":"2013-10-17T09:07:29Z","abstract_excerpt":"We found that transport critical current density (Jc) of the Ba1-xKxFe2As2/Ag tapes is significantly enhanced by the combination process of cold flat rolling and uniaxial pressing. At 4.2 K, the Jc reaches a high value of 9.1x104 A/cm2 in 4 T, which is almost the practical level of 105 A/cm2. The Jc-H curve shows extremely small magnetic field dependence and keeps a high value of 6.9x104 A/cm2 in 10 T. These are the highest values reported so far for iron based superconducting wires. We also show our successful attempts of the fabrication of multi-filamentary tapes. A high Jc value of 5.3x104 "},"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":"1310.4623","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-10-17T09:07:29Z","cross_cats_sorted":[],"title_canon_sha256":"2f40ccf4e4a4a336b60201d9755fce947e92c377e3fff7663cbba369cbc82342","abstract_canon_sha256":"4f576c16bf47e00136a36329bef6478c8d5ab319e4311ae0a8532578fdded00f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:10:13.543744Z","signature_b64":"qNHoNPS/7fJLabbqBtD6Q6eGhlO/v20f/bDofoSmTyF39jQR9w7ys68HZLZKAgE5/B85GbVAbZYZ8hmXlsNIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f74df05806f8aef439809acc16278d7a1a60dd5157608d58d8441b26d603bdfc","last_reissued_at":"2026-05-18T03:10:13.543037Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:10:13.543037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Achievement of practical level critical current densities in PIT Ba1-xKxFe2As2/Ag tapes by conventional cold mechanical deformation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Akiyoshi Matsumoto, Hiroaki Kumakura, Kazumasa Togano, Zhaoshun Gao","submitted_at":"2013-10-17T09:07:29Z","abstract_excerpt":"We found that transport critical current density (Jc) of the Ba1-xKxFe2As2/Ag tapes is significantly enhanced by the combination process of cold flat rolling and uniaxial pressing. At 4.2 K, the Jc reaches a high value of 9.1x104 A/cm2 in 4 T, which is almost the practical level of 105 A/cm2. The Jc-H curve shows extremely small magnetic field dependence and keeps a high value of 6.9x104 A/cm2 in 10 T. These are the highest values reported so far for iron based superconducting wires. We also show our successful attempts of the fabrication of multi-filamentary tapes. A high Jc value of 5.3x104 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.4623","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1310.4623","created_at":"2026-05-18T03:10:13.543134+00:00"},{"alias_kind":"arxiv_version","alias_value":"1310.4623v1","created_at":"2026-05-18T03:10:13.543134+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.4623","created_at":"2026-05-18T03:10:13.543134+00:00"},{"alias_kind":"pith_short_12","alias_value":"65G7AWAG7CXP","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_16","alias_value":"65G7AWAG7CXPIOMA","created_at":"2026-05-18T12:27:34.582898+00:00"},{"alias_kind":"pith_short_8","alias_value":"65G7AWAG","created_at":"2026-05-18T12:27:34.582898+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/65G7AWAG7CXPIOMATLGBMJ4NPI","json":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI.json","graph_json":"https://pith.science/api/pith-number/65G7AWAG7CXPIOMATLGBMJ4NPI/graph.json","events_json":"https://pith.science/api/pith-number/65G7AWAG7CXPIOMATLGBMJ4NPI/events.json","paper":"https://pith.science/paper/65G7AWAG"},"agent_actions":{"view_html":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI","download_json":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI.json","view_paper":"https://pith.science/paper/65G7AWAG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1310.4623&json=true","fetch_graph":"https://pith.science/api/pith-number/65G7AWAG7CXPIOMATLGBMJ4NPI/graph.json","fetch_events":"https://pith.science/api/pith-number/65G7AWAG7CXPIOMATLGBMJ4NPI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI/action/storage_attestation","attest_author":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI/action/author_attestation","sign_citation":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI/action/citation_signature","submit_replication":"https://pith.science/pith/65G7AWAG7CXPIOMATLGBMJ4NPI/action/replication_record"}},"created_at":"2026-05-18T03:10:13.543134+00:00","updated_at":"2026-05-18T03:10:13.543134+00:00"}