{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:ESKKAKKTQAO7XBUCVJLBCTWWEC","short_pith_number":"pith:ESKKAKKT","schema_version":"1.0","canonical_sha256":"2494a02953801dfb8682aa56114ed620bc1dd39f600aeded289f5a2bfa970419","source":{"kind":"arxiv","id":"0912.4154","version":1},"attestation_state":"computed","paper":{"title":"Coherent transport of armchair graphene constrictions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Huiqiong Yin, Ruibao Tao, Wei Li, Xiao Hu","submitted_at":"2009-12-21T14:38:03Z","abstract_excerpt":"The coherent transport properties of armchair graphene nanoconstrictions(GNC) are studied using tight-binding approach and Green's function method. We find a non-bonding state at zero Fermi energy which results in a zero conductance valley, when a single vacancy locates at $y=3n\\pm 1$ of a perfect metallic armchair graphene nanoribbon(aGNR). However, the non-bonding state doesn't exist when a vacancy locates at y=3n, and the conductance behavior of lowest conducting channel will not be affected by the vacancy. For the square-shaped armchair GNC consisting of three metallic aGNR segments, reson"},"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":"0912.4154","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2009-12-21T14:38:03Z","cross_cats_sorted":[],"title_canon_sha256":"389aad5f089ff71ace7c372b826f8c36c8d2332ce84a10d10c7ddc3d20996d10","abstract_canon_sha256":"ce55762ca2e58f435b472f5167308fcfeb6a49255becc6b5fab72ef544e5030c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:15.003657Z","signature_b64":"9lZ6TWo7Q5ahdTuYaYAAYwh3aMgd/C8dw8JTy6DA/dlvak9FC+WyCGlSL9F2hITYO+mWKsak3nffiTWJEMLEAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2494a02953801dfb8682aa56114ed620bc1dd39f600aeded289f5a2bfa970419","last_reissued_at":"2026-05-18T02:10:15.003037Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:15.003037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coherent transport of armchair graphene constrictions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Huiqiong Yin, Ruibao Tao, Wei Li, Xiao Hu","submitted_at":"2009-12-21T14:38:03Z","abstract_excerpt":"The coherent transport properties of armchair graphene nanoconstrictions(GNC) are studied using tight-binding approach and Green's function method. We find a non-bonding state at zero Fermi energy which results in a zero conductance valley, when a single vacancy locates at $y=3n\\pm 1$ of a perfect metallic armchair graphene nanoribbon(aGNR). However, the non-bonding state doesn't exist when a vacancy locates at y=3n, and the conductance behavior of lowest conducting channel will not be affected by the vacancy. For the square-shaped armchair GNC consisting of three metallic aGNR segments, reson"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.4154","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":"0912.4154","created_at":"2026-05-18T02:10:15.003119+00:00"},{"alias_kind":"arxiv_version","alias_value":"0912.4154v1","created_at":"2026-05-18T02:10:15.003119+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.4154","created_at":"2026-05-18T02:10:15.003119+00:00"},{"alias_kind":"pith_short_12","alias_value":"ESKKAKKTQAO7","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_16","alias_value":"ESKKAKKTQAO7XBUC","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_8","alias_value":"ESKKAKKT","created_at":"2026-05-18T12:25:59.703012+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/ESKKAKKTQAO7XBUCVJLBCTWWEC","json":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC.json","graph_json":"https://pith.science/api/pith-number/ESKKAKKTQAO7XBUCVJLBCTWWEC/graph.json","events_json":"https://pith.science/api/pith-number/ESKKAKKTQAO7XBUCVJLBCTWWEC/events.json","paper":"https://pith.science/paper/ESKKAKKT"},"agent_actions":{"view_html":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC","download_json":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC.json","view_paper":"https://pith.science/paper/ESKKAKKT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0912.4154&json=true","fetch_graph":"https://pith.science/api/pith-number/ESKKAKKTQAO7XBUCVJLBCTWWEC/graph.json","fetch_events":"https://pith.science/api/pith-number/ESKKAKKTQAO7XBUCVJLBCTWWEC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC/action/storage_attestation","attest_author":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC/action/author_attestation","sign_citation":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC/action/citation_signature","submit_replication":"https://pith.science/pith/ESKKAKKTQAO7XBUCVJLBCTWWEC/action/replication_record"}},"created_at":"2026-05-18T02:10:15.003119+00:00","updated_at":"2026-05-18T02:10:15.003119+00:00"}