{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:5GZWTZZ77QQH4IA5R2KEDJ6YQM","short_pith_number":"pith:5GZWTZZ7","schema_version":"1.0","canonical_sha256":"e9b369e73ffc207e201d8e9441a7d8830e94145d7d1337cff09293e3f58b86df","source":{"kind":"arxiv","id":"1005.3075","version":2},"attestation_state":"computed","paper":{"title":"Metal-terminated Graphene Nanoribbons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Chao Cao, Hai-Ping Cheng, Yan Wang","submitted_at":"2010-05-17T23:10:43Z","abstract_excerpt":"We have investigated structure, electronic, and magnetic properties of metal-terminated zigzag graphene nanoribbons (M-ZGNRs) by first-principles calculations. Two families of metal terminations are studied: (1) 3d-transition metals (TMs) Fe, Co, and Ni and (2) noble metals (NMs) Cu, Ag, and Au. All systems have spin-polarized edge states with antiferromagnetic (AFM) ordering between two edges, except Co-ZGNRs and Ni-ZGNRs which exhibit negligibly small energy differences between AFM and ferromagnetic states with the given ribbon width. In the AFM state the TM terminations transform semiconduc"},"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":"1005.3075","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-05-17T23:10:43Z","cross_cats_sorted":[],"title_canon_sha256":"9c3b023c1769cfd6762363b55d8489ee60d6a9ae06edf46515d6ef40a81a46e6","abstract_canon_sha256":"2ecec3e90ea3c37860ced3f15d4782cb1265942772278fef18e8a86363e7fcfb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:34:37.109239Z","signature_b64":"B/Kc+9NV9Lgv5l+sqs89S8sLOhpiiAHrTym0+AWLHu+eHjNHw0358UrMl9khcXgIsJ+irxZKX5B4UlfQl4TOCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e9b369e73ffc207e201d8e9441a7d8830e94145d7d1337cff09293e3f58b86df","last_reissued_at":"2026-05-18T04:34:37.108850Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:34:37.108850Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Metal-terminated Graphene Nanoribbons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Chao Cao, Hai-Ping Cheng, Yan Wang","submitted_at":"2010-05-17T23:10:43Z","abstract_excerpt":"We have investigated structure, electronic, and magnetic properties of metal-terminated zigzag graphene nanoribbons (M-ZGNRs) by first-principles calculations. Two families of metal terminations are studied: (1) 3d-transition metals (TMs) Fe, Co, and Ni and (2) noble metals (NMs) Cu, Ag, and Au. All systems have spin-polarized edge states with antiferromagnetic (AFM) ordering between two edges, except Co-ZGNRs and Ni-ZGNRs which exhibit negligibly small energy differences between AFM and ferromagnetic states with the given ribbon width. In the AFM state the TM terminations transform semiconduc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3075","kind":"arxiv","version":2},"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":"1005.3075","created_at":"2026-05-18T04:34:37.108914+00:00"},{"alias_kind":"arxiv_version","alias_value":"1005.3075v2","created_at":"2026-05-18T04:34:37.108914+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3075","created_at":"2026-05-18T04:34:37.108914+00:00"},{"alias_kind":"pith_short_12","alias_value":"5GZWTZZ77QQH","created_at":"2026-05-18T12:26:04.259169+00:00"},{"alias_kind":"pith_short_16","alias_value":"5GZWTZZ77QQH4IA5","created_at":"2026-05-18T12:26:04.259169+00:00"},{"alias_kind":"pith_short_8","alias_value":"5GZWTZZ7","created_at":"2026-05-18T12:26:04.259169+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/5GZWTZZ77QQH4IA5R2KEDJ6YQM","json":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM.json","graph_json":"https://pith.science/api/pith-number/5GZWTZZ77QQH4IA5R2KEDJ6YQM/graph.json","events_json":"https://pith.science/api/pith-number/5GZWTZZ77QQH4IA5R2KEDJ6YQM/events.json","paper":"https://pith.science/paper/5GZWTZZ7"},"agent_actions":{"view_html":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM","download_json":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM.json","view_paper":"https://pith.science/paper/5GZWTZZ7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1005.3075&json=true","fetch_graph":"https://pith.science/api/pith-number/5GZWTZZ77QQH4IA5R2KEDJ6YQM/graph.json","fetch_events":"https://pith.science/api/pith-number/5GZWTZZ77QQH4IA5R2KEDJ6YQM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM/action/storage_attestation","attest_author":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM/action/author_attestation","sign_citation":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM/action/citation_signature","submit_replication":"https://pith.science/pith/5GZWTZZ77QQH4IA5R2KEDJ6YQM/action/replication_record"}},"created_at":"2026-05-18T04:34:37.108914+00:00","updated_at":"2026-05-18T04:34:37.108914+00:00"}