{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2023:WJNF43NWYDNPDHACBJT6HTBOPJ","short_pith_number":"pith:WJNF43NW","schema_version":"1.0","canonical_sha256":"b25a5e6db6c0daf19c020a67e3cc2e7a7a4c42db61efabaa5dcb5d9b6727e2ae","source":{"kind":"arxiv","id":"2308.08876","version":1},"attestation_state":"computed","paper":{"title":"Interfacial Fe segregation and its influence on magnetic properties of CoFeB/MgFeO multilayers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Kay Yakushiji, Shingo Tamaru, Shinji Yuasa, Takayuki Nozaki, Tatsuya Yamamoto, Tomohiro Ichinose","submitted_at":"2023-08-17T09:15:10Z","abstract_excerpt":"We investigated the effect of Fe segregated from partially Fe-substituted MgO (MgFeO) on the magnetic properties of CoFeB/MgFeO multilayers. X-ray photoelectron spectroscopy (XPS) as well as magnetic measurements revealed that the segregated Fe was reduced to metal and exhibited ferromagnetism at the CoFeB/MgFeO interface. The CoFeB/MgFeO multilayer showed more than 2-fold enhancement in perpendicular magnetic anisotropy (PMA) energy density compared with a standard CoFeB/MgO multilayer. The PMA energy density was further enhanced by inserting an ultrathin MgO layer in between CoFeB and MgFeO "},"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":"2308.08876","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2023-08-17T09:15:10Z","cross_cats_sorted":[],"title_canon_sha256":"b2fedcb3bab183a6ba86f273341ceb897c0fd89fec54281938b05d0dda2a91ab","abstract_canon_sha256":"d45281c804cdf609035b1fc21c45c66b4eb8ad049d72fb1b2ae353c320a41c6a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:42:12.935462Z","signature_b64":"ksN/eb4roNG7G6lWowFzg5N/FObx+NsxbeL8Swac0M0aTgI/kABbP3i6+zIllATuXGZoXpvmqLq30DveZod3DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b25a5e6db6c0daf19c020a67e3cc2e7a7a4c42db61efabaa5dcb5d9b6727e2ae","last_reissued_at":"2026-07-05T06:42:12.934983Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:42:12.934983Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Interfacial Fe segregation and its influence on magnetic properties of CoFeB/MgFeO multilayers","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Kay Yakushiji, Shingo Tamaru, Shinji Yuasa, Takayuki Nozaki, Tatsuya Yamamoto, Tomohiro Ichinose","submitted_at":"2023-08-17T09:15:10Z","abstract_excerpt":"We investigated the effect of Fe segregated from partially Fe-substituted MgO (MgFeO) on the magnetic properties of CoFeB/MgFeO multilayers. X-ray photoelectron spectroscopy (XPS) as well as magnetic measurements revealed that the segregated Fe was reduced to metal and exhibited ferromagnetism at the CoFeB/MgFeO interface. The CoFeB/MgFeO multilayer showed more than 2-fold enhancement in perpendicular magnetic anisotropy (PMA) energy density compared with a standard CoFeB/MgO multilayer. The PMA energy density was further enhanced by inserting an ultrathin MgO layer in between CoFeB and MgFeO "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2308.08876","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/2308.08876/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":"2308.08876","created_at":"2026-07-05T06:42:12.935043+00:00"},{"alias_kind":"arxiv_version","alias_value":"2308.08876v1","created_at":"2026-07-05T06:42:12.935043+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2308.08876","created_at":"2026-07-05T06:42:12.935043+00:00"},{"alias_kind":"pith_short_12","alias_value":"WJNF43NWYDNP","created_at":"2026-07-05T06:42:12.935043+00:00"},{"alias_kind":"pith_short_16","alias_value":"WJNF43NWYDNPDHAC","created_at":"2026-07-05T06:42:12.935043+00:00"},{"alias_kind":"pith_short_8","alias_value":"WJNF43NW","created_at":"2026-07-05T06:42:12.935043+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/WJNF43NWYDNPDHACBJT6HTBOPJ","json":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ.json","graph_json":"https://pith.science/api/pith-number/WJNF43NWYDNPDHACBJT6HTBOPJ/graph.json","events_json":"https://pith.science/api/pith-number/WJNF43NWYDNPDHACBJT6HTBOPJ/events.json","paper":"https://pith.science/paper/WJNF43NW"},"agent_actions":{"view_html":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ","download_json":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ.json","view_paper":"https://pith.science/paper/WJNF43NW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2308.08876&json=true","fetch_graph":"https://pith.science/api/pith-number/WJNF43NWYDNPDHACBJT6HTBOPJ/graph.json","fetch_events":"https://pith.science/api/pith-number/WJNF43NWYDNPDHACBJT6HTBOPJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ/action/storage_attestation","attest_author":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ/action/author_attestation","sign_citation":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ/action/citation_signature","submit_replication":"https://pith.science/pith/WJNF43NWYDNPDHACBJT6HTBOPJ/action/replication_record"}},"created_at":"2026-07-05T06:42:12.935043+00:00","updated_at":"2026-07-05T06:42:12.935043+00:00"}