{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SPXRNZH3BDMRDDW4B45VOJ3G6R","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"dda28262508c757c96f6fc0599aba8733f2f05348496cd0993a37c787ee27756","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-27T06:23:53Z","title_canon_sha256":"70df2c7c3bda37e235f4c3b7790242a8775098c9d7c3a96cc97f3606cb7277b3"},"schema_version":"1.0","source":{"id":"1712.09504","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.09504","created_at":"2026-05-18T00:27:08Z"},{"alias_kind":"arxiv_version","alias_value":"1712.09504v1","created_at":"2026-05-18T00:27:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.09504","created_at":"2026-05-18T00:27:08Z"},{"alias_kind":"pith_short_12","alias_value":"SPXRNZH3BDMR","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SPXRNZH3BDMRDDW4","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SPXRNZH3","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:4e51d8e718ea0f2ab855ec114c3feb6fa0ed36b3daa2e4c50d7afb29612a7d75","target":"graph","created_at":"2026-05-18T00:27:08Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We report on the investigation of coercivity changes of the Co$_{72}$Pt$_{28}$/Co$_{81}$Ir$_{19}$ exchange-coupled composite (ECC) media with negative soft-layer (SL) magnetocrystalline anisotropy (MA) . Our results show that the hard-layer (HL) of our sample exhibits a columnar type microstructure with well isolated grains and the SL with hcp-structure grows on top of the HL with the same texture. Therefore, strong coupling of the two layers have been realized as evidenced by the magnetic characterization. Importantly, we observe a more effective reduction of the coercivity of the ECC media b","authors_text":"Fashen Li, Juanying Jiao, Liang Qiao, Tao Wang, Tianyong Ma, Ying Wang, Zhiwei Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-27T06:23:53Z","title":"Effective reduction of the coercivity for Co$_{72}$Pt$_{28}$ thin film by exchange coupled Co$_{81}$Ir$_{19}$ soft layer with negative magnetocrystalline anisotropy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.09504","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1421e3a839ed3376522c396c1151278daf4409eda63c88f37ae61e34ad0f52fa","target":"record","created_at":"2026-05-18T00:27:08Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"dda28262508c757c96f6fc0599aba8733f2f05348496cd0993a37c787ee27756","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-27T06:23:53Z","title_canon_sha256":"70df2c7c3bda37e235f4c3b7790242a8775098c9d7c3a96cc97f3606cb7277b3"},"schema_version":"1.0","source":{"id":"1712.09504","kind":"arxiv","version":1}},"canonical_sha256":"93ef16e4fb08d9118edc0f3b572766f445a54c32b43a7138fc821b16050b2df7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93ef16e4fb08d9118edc0f3b572766f445a54c32b43a7138fc821b16050b2df7","first_computed_at":"2026-05-18T00:27:08.176519Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:08.176519Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F1iGBuP4lRzN4je3NWh7a+CjjRboBDy8bnm2n9DrVTW3l9mdTKF/hLDJaQ5nWkemBJZe0IDASL5KvIqNCVHCDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:08.177144Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.09504","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1421e3a839ed3376522c396c1151278daf4409eda63c88f37ae61e34ad0f52fa","sha256:4e51d8e718ea0f2ab855ec114c3feb6fa0ed36b3daa2e4c50d7afb29612a7d75"],"state_sha256":"d026381b129dfbf3cc54b692a300f6501bcbae903b8574d65743d56f7a03cd6d"}