{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:XZOIWT7VKHO4PCFOII7KLLQLZR","short_pith_number":"pith:XZOIWT7V","schema_version":"1.0","canonical_sha256":"be5c8b4ff551ddc788ae423ea5ae0bcc7faec78e9eeb76bb126bf0fefbcb479d","source":{"kind":"arxiv","id":"1108.4831","version":1},"attestation_state":"computed","paper":{"title":"Sub-Poissonian shot noise in CoFeB/MgO/CoFeB-based magnetic tunneling junctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Akio Fukushima, Daichi Chiba, Kensaku Chida, Kensuke Kobayashi, Koji Sekiguchi, Shinji Yuasa, Shuji Nakamura, Teruo Ono, Tomonori Arakawa, Yoshitaka Nishihara","submitted_at":"2011-08-24T13:06:54Z","abstract_excerpt":"We measured the shot noise in the CoFeB/MgO/CoFeB-based magnetic tunneling junctions with a high tunneling magnetoresistance ratio (over 200% at 3 K). Although the Fano factor in the anti-parallel configuration is close to unity, it is observed to be typically 0.91\\pm0.01 in the parallel configuration. It indicates the sub-Poissonian process of the electron tunneling in the parallel configuration due to the relevance of the spin-dependent coherent transport in the low bias regime."},"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":"1108.4831","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-08-24T13:06:54Z","cross_cats_sorted":[],"title_canon_sha256":"54d67f2b2510311d3c0aa25d7d651c2847e713409207628cdb759bb14ace9fd1","abstract_canon_sha256":"8b66677ddb610a4ce909b4a39bb90d26c15e408602972c32693b4d977d87d93f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:14:46.712552Z","signature_b64":"5CE88lZGNAqeOIogwpPemeiu6eV8WqjSjbhBawD8XVu3qiieLKBThRz6F4+ove6SupeTo0MLZ5hHLEAL2JjMDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be5c8b4ff551ddc788ae423ea5ae0bcc7faec78e9eeb76bb126bf0fefbcb479d","last_reissued_at":"2026-05-18T04:14:46.712089Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:14:46.712089Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Sub-Poissonian shot noise in CoFeB/MgO/CoFeB-based magnetic tunneling junctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Akio Fukushima, Daichi Chiba, Kensaku Chida, Kensuke Kobayashi, Koji Sekiguchi, Shinji Yuasa, Shuji Nakamura, Teruo Ono, Tomonori Arakawa, Yoshitaka Nishihara","submitted_at":"2011-08-24T13:06:54Z","abstract_excerpt":"We measured the shot noise in the CoFeB/MgO/CoFeB-based magnetic tunneling junctions with a high tunneling magnetoresistance ratio (over 200% at 3 K). Although the Fano factor in the anti-parallel configuration is close to unity, it is observed to be typically 0.91\\pm0.01 in the parallel configuration. It indicates the sub-Poissonian process of the electron tunneling in the parallel configuration due to the relevance of the spin-dependent coherent transport in the low bias regime."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.4831","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":"1108.4831","created_at":"2026-05-18T04:14:46.712165+00:00"},{"alias_kind":"arxiv_version","alias_value":"1108.4831v1","created_at":"2026-05-18T04:14:46.712165+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.4831","created_at":"2026-05-18T04:14:46.712165+00:00"},{"alias_kind":"pith_short_12","alias_value":"XZOIWT7VKHO4","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_16","alias_value":"XZOIWT7VKHO4PCFO","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_8","alias_value":"XZOIWT7V","created_at":"2026-05-18T12:26:47.523578+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/XZOIWT7VKHO4PCFOII7KLLQLZR","json":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR.json","graph_json":"https://pith.science/api/pith-number/XZOIWT7VKHO4PCFOII7KLLQLZR/graph.json","events_json":"https://pith.science/api/pith-number/XZOIWT7VKHO4PCFOII7KLLQLZR/events.json","paper":"https://pith.science/paper/XZOIWT7V"},"agent_actions":{"view_html":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR","download_json":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR.json","view_paper":"https://pith.science/paper/XZOIWT7V","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1108.4831&json=true","fetch_graph":"https://pith.science/api/pith-number/XZOIWT7VKHO4PCFOII7KLLQLZR/graph.json","fetch_events":"https://pith.science/api/pith-number/XZOIWT7VKHO4PCFOII7KLLQLZR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR/action/storage_attestation","attest_author":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR/action/author_attestation","sign_citation":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR/action/citation_signature","submit_replication":"https://pith.science/pith/XZOIWT7VKHO4PCFOII7KLLQLZR/action/replication_record"}},"created_at":"2026-05-18T04:14:46.712165+00:00","updated_at":"2026-05-18T04:14:46.712165+00:00"}