{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:IWXUB7XV7OLKPGYXK7EIFK73ES","short_pith_number":"pith:IWXUB7XV","schema_version":"1.0","canonical_sha256":"45af40fef5fb96a79b1757c882abfb24804228239ed8021c3ff1291a4aa6b1fc","source":{"kind":"arxiv","id":"1301.4162","version":1},"attestation_state":"computed","paper":{"title":"Stone-Wales defects can cause a metal-semiconductor transition in carbon nanotubes depending on their orientation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Namiranian, P. Partovi-Azar","submitted_at":"2013-01-17T17:21:12Z","abstract_excerpt":"It has been shown that the two different orientations of Stone-Wales (SW) defects, i.e. longitudinal and circumferential SW defects, on carbon nanotubes (CNTs) result in two different electronic structures. Based on density functional theory we have shown that the longitudinal SW defects do not open a bandgap near the Fermi energy, while a relatively small bandgap emerges in tubes with circumferential defects. We argue that the bandgap opening in the presence of circumferential SW defects is a consequence of long-range symmetry breaking which can spread all the way along the tube. Specifically"},"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":"1301.4162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-01-17T17:21:12Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9b10f941dde51a475dbbcedfc720dfe82896e359cdfd1a3ca10faa69ca6db68a","abstract_canon_sha256":"7154fc12939ff64bd29ed3fe67919a28d935f02b45457c0d77fccefaa1552b9f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:07.078965Z","signature_b64":"lVw2MIxtyChKGKcPu/JwTqiQMc+TwP/3dwqAm9fnxgHIRZF5oguutY1l7xDvBXFzflbIUwbNuVbXvTaxa144CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"45af40fef5fb96a79b1757c882abfb24804228239ed8021c3ff1291a4aa6b1fc","last_reissued_at":"2026-05-18T03:36:07.078297Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:07.078297Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Stone-Wales defects can cause a metal-semiconductor transition in carbon nanotubes depending on their orientation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Namiranian, P. Partovi-Azar","submitted_at":"2013-01-17T17:21:12Z","abstract_excerpt":"It has been shown that the two different orientations of Stone-Wales (SW) defects, i.e. longitudinal and circumferential SW defects, on carbon nanotubes (CNTs) result in two different electronic structures. Based on density functional theory we have shown that the longitudinal SW defects do not open a bandgap near the Fermi energy, while a relatively small bandgap emerges in tubes with circumferential defects. We argue that the bandgap opening in the presence of circumferential SW defects is a consequence of long-range symmetry breaking which can spread all the way along the tube. Specifically"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.4162","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":"1301.4162","created_at":"2026-05-18T03:36:07.078408+00:00"},{"alias_kind":"arxiv_version","alias_value":"1301.4162v1","created_at":"2026-05-18T03:36:07.078408+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.4162","created_at":"2026-05-18T03:36:07.078408+00:00"},{"alias_kind":"pith_short_12","alias_value":"IWXUB7XV7OLK","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_16","alias_value":"IWXUB7XV7OLKPGYX","created_at":"2026-05-18T12:27:49.015174+00:00"},{"alias_kind":"pith_short_8","alias_value":"IWXUB7XV","created_at":"2026-05-18T12:27:49.015174+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/IWXUB7XV7OLKPGYXK7EIFK73ES","json":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES.json","graph_json":"https://pith.science/api/pith-number/IWXUB7XV7OLKPGYXK7EIFK73ES/graph.json","events_json":"https://pith.science/api/pith-number/IWXUB7XV7OLKPGYXK7EIFK73ES/events.json","paper":"https://pith.science/paper/IWXUB7XV"},"agent_actions":{"view_html":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES","download_json":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES.json","view_paper":"https://pith.science/paper/IWXUB7XV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1301.4162&json=true","fetch_graph":"https://pith.science/api/pith-number/IWXUB7XV7OLKPGYXK7EIFK73ES/graph.json","fetch_events":"https://pith.science/api/pith-number/IWXUB7XV7OLKPGYXK7EIFK73ES/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES/action/storage_attestation","attest_author":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES/action/author_attestation","sign_citation":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES/action/citation_signature","submit_replication":"https://pith.science/pith/IWXUB7XV7OLKPGYXK7EIFK73ES/action/replication_record"}},"created_at":"2026-05-18T03:36:07.078408+00:00","updated_at":"2026-05-18T03:36:07.078408+00:00"}