{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:ZFQAAXAZAUN2UM4JQ5LMV7MSGD","short_pith_number":"pith:ZFQAAXAZ","schema_version":"1.0","canonical_sha256":"c960005c19051baa33898756cafd9230e9b780ac3f759795ee4aa55a3355b3d1","source":{"kind":"arxiv","id":"cond-mat/0601684","version":1},"attestation_state":"computed","paper":{"title":"Fabrication and properties of MgB2/AlOx/MgB2 tunnel junctions","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"K. Semba, K. Ueda, M. Naito, S. Saito, T. Makimoto","submitted_at":"2006-01-31T00:44:41Z","abstract_excerpt":"Sandwich-type MgB2 Josephson tunnel junctions (MgB2/AlOx/MgB2) have been fabricated using as-grown MgB2 films formed by molecular beam epitaxy. The junctions exhibited substantial supercurrent and a well-defined superconducting gap (D=2.2~2.3mV). The superconducting gap voltage (D) agrees well with those of the smaller gap in the multi-gap scenario. The IcRN product is 0.4-1.3 mV at 4.2K, but approaches to 2.0 mV at 50 mK. The Ic has peculiar temperature dependence far from the Ambegaokar-Baratoff formula. It rapidly decreases with temperature, and disappears above T = 20 K, which is much lowe"},"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/0601684","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2006-01-31T00:44:41Z","cross_cats_sorted":[],"title_canon_sha256":"3162cc24d9cbeb2899b736c9105a8e5ab6e00aa3bfa849f2a4cbad18abf0078b","abstract_canon_sha256":"b3bb3858faa64e31a0f446f7e5a9db9c08f75ffb49fdbbcf0fc46b9ed21d60ab"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:52:40.450280Z","signature_b64":"4DjCvjZqYo6uMU83mKGOvTQofKg0F36ZaSoE87PvpIEx1zCm1fPw2Rmn6JWg8fAQM/dAQHOgzooUulBxqja9AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c960005c19051baa33898756cafd9230e9b780ac3f759795ee4aa55a3355b3d1","last_reissued_at":"2026-07-04T14:52:40.449893Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:52:40.449893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Fabrication and properties of MgB2/AlOx/MgB2 tunnel junctions","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"K. Semba, K. Ueda, M. Naito, S. Saito, T. Makimoto","submitted_at":"2006-01-31T00:44:41Z","abstract_excerpt":"Sandwich-type MgB2 Josephson tunnel junctions (MgB2/AlOx/MgB2) have been fabricated using as-grown MgB2 films formed by molecular beam epitaxy. The junctions exhibited substantial supercurrent and a well-defined superconducting gap (D=2.2~2.3mV). The superconducting gap voltage (D) agrees well with those of the smaller gap in the multi-gap scenario. The IcRN product is 0.4-1.3 mV at 4.2K, but approaches to 2.0 mV at 50 mK. The Ic has peculiar temperature dependence far from the Ambegaokar-Baratoff formula. It rapidly decreases with temperature, and disappears above T = 20 K, which is much lowe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0601684","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/0601684/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/0601684","created_at":"2026-07-04T14:52:40.449959+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0601684v1","created_at":"2026-07-04T14:52:40.449959+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0601684","created_at":"2026-07-04T14:52:40.449959+00:00"},{"alias_kind":"pith_short_12","alias_value":"ZFQAAXAZAUN2","created_at":"2026-07-04T14:52:40.449959+00:00"},{"alias_kind":"pith_short_16","alias_value":"ZFQAAXAZAUN2UM4J","created_at":"2026-07-04T14:52:40.449959+00:00"},{"alias_kind":"pith_short_8","alias_value":"ZFQAAXAZ","created_at":"2026-07-04T14:52:40.449959+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/ZFQAAXAZAUN2UM4JQ5LMV7MSGD","json":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD.json","graph_json":"https://pith.science/api/pith-number/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/graph.json","events_json":"https://pith.science/api/pith-number/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/events.json","paper":"https://pith.science/paper/ZFQAAXAZ"},"agent_actions":{"view_html":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD","download_json":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD.json","view_paper":"https://pith.science/paper/ZFQAAXAZ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0601684&json=true","fetch_graph":"https://pith.science/api/pith-number/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/graph.json","fetch_events":"https://pith.science/api/pith-number/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/action/storage_attestation","attest_author":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/action/author_attestation","sign_citation":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/action/citation_signature","submit_replication":"https://pith.science/pith/ZFQAAXAZAUN2UM4JQ5LMV7MSGD/action/replication_record"}},"created_at":"2026-07-04T14:52:40.449959+00:00","updated_at":"2026-07-04T14:52:40.449959+00:00"}