{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:YOVZ5LPE63VI7MH4LIUX6KGHLD","short_pith_number":"pith:YOVZ5LPE","schema_version":"1.0","canonical_sha256":"c3ab9eade4f6ea8fb0fc5a297f28c758f8088eb1399ce1c1d811351996e9310e","source":{"kind":"arxiv","id":"1705.02804","version":1},"attestation_state":"computed","paper":{"title":"Exchange coupling of a perpendicular ferromagnet to a half-metallic compensated ferrimagnet via a thin hafnium interlayer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Gavin D'Arcy, Gwena\\\"el Atcheson, J.M.D. Coey, Karsten Rode, Kiril Borisov, Yong-Chang Lau","submitted_at":"2017-05-08T10:01:48Z","abstract_excerpt":"A thin Hafnium film is shown to act both as an effective diffusion barrier for manganese at a thickness of 0.7 nm, and as an effective exchange coupling layer in a sandwich structure with perpendicular magnetic anisotropy. The magnetic layers are Co$_{20}$Fe$_{60}$B$_{20}$ and the low moment ferrimagnet Mn$_2$Ru$_x$Ga (MRG). The coupling changes sign at the compensation temperature of MRG and the exchange energy reaches 0.11 mJm$^{-2}$ for the thinnest Hf interlayers. Ruthenium, the usual metal of choice for coupling ferromagnetic layers in thin film heterostructures, cannot be used with the z"},"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":"1705.02804","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-05-08T10:01:48Z","cross_cats_sorted":[],"title_canon_sha256":"0f9f9228d4798e3eea73f6d6c9e30becba0d4030d36bf8dd7dc75442108d73ce","abstract_canon_sha256":"f7d1b6bdab74fa6e874a86b34bc560df8182de8ff285c83d818fd6b5b9aa73be"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:18.384768Z","signature_b64":"uPxblba+SPtEM2ixORj34sGucqix7vjsUDC/4ui0wqMe1sqO76mTMLKig21+R3VtYYKmzcE45fwgR7j0n2P2AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c3ab9eade4f6ea8fb0fc5a297f28c758f8088eb1399ce1c1d811351996e9310e","last_reissued_at":"2026-05-18T00:33:18.384137Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:18.384137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exchange coupling of a perpendicular ferromagnet to a half-metallic compensated ferrimagnet via a thin hafnium interlayer","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Gavin D'Arcy, Gwena\\\"el Atcheson, J.M.D. Coey, Karsten Rode, Kiril Borisov, Yong-Chang Lau","submitted_at":"2017-05-08T10:01:48Z","abstract_excerpt":"A thin Hafnium film is shown to act both as an effective diffusion barrier for manganese at a thickness of 0.7 nm, and as an effective exchange coupling layer in a sandwich structure with perpendicular magnetic anisotropy. The magnetic layers are Co$_{20}$Fe$_{60}$B$_{20}$ and the low moment ferrimagnet Mn$_2$Ru$_x$Ga (MRG). The coupling changes sign at the compensation temperature of MRG and the exchange energy reaches 0.11 mJm$^{-2}$ for the thinnest Hf interlayers. Ruthenium, the usual metal of choice for coupling ferromagnetic layers in thin film heterostructures, cannot be used with the z"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02804","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":"1705.02804","created_at":"2026-05-18T00:33:18.384238+00:00"},{"alias_kind":"arxiv_version","alias_value":"1705.02804v1","created_at":"2026-05-18T00:33:18.384238+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02804","created_at":"2026-05-18T00:33:18.384238+00:00"},{"alias_kind":"pith_short_12","alias_value":"YOVZ5LPE63VI","created_at":"2026-05-18T12:31:56.362134+00:00"},{"alias_kind":"pith_short_16","alias_value":"YOVZ5LPE63VI7MH4","created_at":"2026-05-18T12:31:56.362134+00:00"},{"alias_kind":"pith_short_8","alias_value":"YOVZ5LPE","created_at":"2026-05-18T12:31:56.362134+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/YOVZ5LPE63VI7MH4LIUX6KGHLD","json":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD.json","graph_json":"https://pith.science/api/pith-number/YOVZ5LPE63VI7MH4LIUX6KGHLD/graph.json","events_json":"https://pith.science/api/pith-number/YOVZ5LPE63VI7MH4LIUX6KGHLD/events.json","paper":"https://pith.science/paper/YOVZ5LPE"},"agent_actions":{"view_html":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD","download_json":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD.json","view_paper":"https://pith.science/paper/YOVZ5LPE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1705.02804&json=true","fetch_graph":"https://pith.science/api/pith-number/YOVZ5LPE63VI7MH4LIUX6KGHLD/graph.json","fetch_events":"https://pith.science/api/pith-number/YOVZ5LPE63VI7MH4LIUX6KGHLD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD/action/storage_attestation","attest_author":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD/action/author_attestation","sign_citation":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD/action/citation_signature","submit_replication":"https://pith.science/pith/YOVZ5LPE63VI7MH4LIUX6KGHLD/action/replication_record"}},"created_at":"2026-05-18T00:33:18.384238+00:00","updated_at":"2026-05-18T00:33:18.384238+00:00"}