{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:RK5KWDGF35Z6FHCQ75VGU5OW2N","short_pith_number":"pith:RK5KWDGF","schema_version":"1.0","canonical_sha256":"8abaab0cc5df73e29c50ff6a6a75d6d3482b9637ab4ee522f13650a584e17bfd","source":{"kind":"arxiv","id":"1109.4989","version":1},"attestation_state":"computed","paper":{"title":"Magnetic Core-Shell Structure and Proximity Effect in 7 nm Single-Crystal Co3O4 Nanowires","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Jia-Cai Nie, Lin He, Ping Lv, Rui Xu, Yan Zhang","submitted_at":"2011-09-23T02:08:08Z","abstract_excerpt":"We present a study of magnetic properties of single-crystal Co3O4 nanowires with diameter about 7 nm. The nanowires expose (111) planes composed of plenty of Co3+ cations and exhibit two N\\'eel temperatures at 56 K (TN of wire cores) and 73 K (TN of wire shells), which are far above TN = 40 K of bulk Co3O4. This novel bahavior is attributed to symmetry breaking of surface Co3+ cations and magnetic proximity effect. The nanowire shells show macroscopic residual magnetic moments. Cooling in a magnetic field, a fraction of the residual moments are tightly pinned to the antiferromagnetic lattice, "},"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":"1109.4989","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-09-23T02:08:08Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"3d2ca159aa8db8c6ef61d314165ede0acfd3a7be028d95fd86e6ba664937cf2c","abstract_canon_sha256":"d5bd357893d8f142f7dbf2bc98c6dccf258dedefcaa0edb0a28d4b44018d1414"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:26.249591Z","signature_b64":"er81lPcNAe5dxtEIixRFVP0K4eJGz/kbphjXX5PQK5jO0Fx7Z5H9XQWuWvrp3dxnuO654mZzJ5Gw43tc0cWVBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8abaab0cc5df73e29c50ff6a6a75d6d3482b9637ab4ee522f13650a584e17bfd","last_reissued_at":"2026-05-18T02:00:26.248896Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:26.248896Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Magnetic Core-Shell Structure and Proximity Effect in 7 nm Single-Crystal Co3O4 Nanowires","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Jia-Cai Nie, Lin He, Ping Lv, Rui Xu, Yan Zhang","submitted_at":"2011-09-23T02:08:08Z","abstract_excerpt":"We present a study of magnetic properties of single-crystal Co3O4 nanowires with diameter about 7 nm. The nanowires expose (111) planes composed of plenty of Co3+ cations and exhibit two N\\'eel temperatures at 56 K (TN of wire cores) and 73 K (TN of wire shells), which are far above TN = 40 K of bulk Co3O4. This novel bahavior is attributed to symmetry breaking of surface Co3+ cations and magnetic proximity effect. The nanowire shells show macroscopic residual magnetic moments. Cooling in a magnetic field, a fraction of the residual moments are tightly pinned to the antiferromagnetic lattice, "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.4989","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":"1109.4989","created_at":"2026-05-18T02:00:26.248979+00:00"},{"alias_kind":"arxiv_version","alias_value":"1109.4989v1","created_at":"2026-05-18T02:00:26.248979+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.4989","created_at":"2026-05-18T02:00:26.248979+00:00"},{"alias_kind":"pith_short_12","alias_value":"RK5KWDGF35Z6","created_at":"2026-05-18T12:26:41.206345+00:00"},{"alias_kind":"pith_short_16","alias_value":"RK5KWDGF35Z6FHCQ","created_at":"2026-05-18T12:26:41.206345+00:00"},{"alias_kind":"pith_short_8","alias_value":"RK5KWDGF","created_at":"2026-05-18T12:26:41.206345+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/RK5KWDGF35Z6FHCQ75VGU5OW2N","json":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N.json","graph_json":"https://pith.science/api/pith-number/RK5KWDGF35Z6FHCQ75VGU5OW2N/graph.json","events_json":"https://pith.science/api/pith-number/RK5KWDGF35Z6FHCQ75VGU5OW2N/events.json","paper":"https://pith.science/paper/RK5KWDGF"},"agent_actions":{"view_html":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N","download_json":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N.json","view_paper":"https://pith.science/paper/RK5KWDGF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1109.4989&json=true","fetch_graph":"https://pith.science/api/pith-number/RK5KWDGF35Z6FHCQ75VGU5OW2N/graph.json","fetch_events":"https://pith.science/api/pith-number/RK5KWDGF35Z6FHCQ75VGU5OW2N/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N/action/storage_attestation","attest_author":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N/action/author_attestation","sign_citation":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N/action/citation_signature","submit_replication":"https://pith.science/pith/RK5KWDGF35Z6FHCQ75VGU5OW2N/action/replication_record"}},"created_at":"2026-05-18T02:00:26.248979+00:00","updated_at":"2026-05-18T02:00:26.248979+00:00"}