{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:RF7VZDWLH3X3XFKEBNVEXP7XZT","short_pith_number":"pith:RF7VZDWL","schema_version":"1.0","canonical_sha256":"897f5c8ecb3eefbb95440b6a4bbff7ccd2ffeb910736240c8a529cb34e7f8934","source":{"kind":"arxiv","id":"1409.4534","version":1},"attestation_state":"computed","paper":{"title":"Topological Insulator to Dirac Semimetal Transition Driven by Sign Change of Spin-Orbit Coupling in Thallium Nitride","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hongming Weng, Rui Yu, Xian-Lei Sheng, Xi Dai, Zhijun Wang, Zhong Fang","submitted_at":"2014-09-16T08:27:50Z","abstract_excerpt":"Based on the first-principles calculations, we reveal that TlN, a simple binary compound with Wurtzite structure, is a three-dimensional (3D) topological insulator (TI) with effectively negative spin-orbit coupling $\\lambda_{eff} < 0$, which makes it distinguished from other TIs by showing opposite spin-momentum locking effect in its surface states. The sign of $\\lambda_{eff}$ depends on the hybridization between N-$2p$ and Tl-$5d$ states, and can be tuned from negative to postive by lattice strain or chemical substitution, which drive the system into a Dirac semimetal with 3D Dirac cones in i"},"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":"1409.4534","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-16T08:27:50Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"a7a1c8a62acfd475a49b4b14ed5713c98cd6d84461561e7ced8b4f7052feed4e","abstract_canon_sha256":"9c3977676f6af6d2d50b1b236bb3cdfd296a3e82784cd7e754570a617e6eb764"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:29:31.765276Z","signature_b64":"XYxGyYfbqk0PW3eM7XUr9IbLQdoroSWcPW/3Qya80YTJ5aJUeEOHZm11iV7rWcYT3bReiZGTEfMn8OkkcyndCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"897f5c8ecb3eefbb95440b6a4bbff7ccd2ffeb910736240c8a529cb34e7f8934","last_reissued_at":"2026-05-18T02:29:31.764633Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:29:31.764633Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Topological Insulator to Dirac Semimetal Transition Driven by Sign Change of Spin-Orbit Coupling in Thallium Nitride","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hongming Weng, Rui Yu, Xian-Lei Sheng, Xi Dai, Zhijun Wang, Zhong Fang","submitted_at":"2014-09-16T08:27:50Z","abstract_excerpt":"Based on the first-principles calculations, we reveal that TlN, a simple binary compound with Wurtzite structure, is a three-dimensional (3D) topological insulator (TI) with effectively negative spin-orbit coupling $\\lambda_{eff} < 0$, which makes it distinguished from other TIs by showing opposite spin-momentum locking effect in its surface states. The sign of $\\lambda_{eff}$ depends on the hybridization between N-$2p$ and Tl-$5d$ states, and can be tuned from negative to postive by lattice strain or chemical substitution, which drive the system into a Dirac semimetal with 3D Dirac cones in i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.4534","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":"1409.4534","created_at":"2026-05-18T02:29:31.764732+00:00"},{"alias_kind":"arxiv_version","alias_value":"1409.4534v1","created_at":"2026-05-18T02:29:31.764732+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.4534","created_at":"2026-05-18T02:29:31.764732+00:00"},{"alias_kind":"pith_short_12","alias_value":"RF7VZDWLH3X3","created_at":"2026-05-18T12:28:46.137349+00:00"},{"alias_kind":"pith_short_16","alias_value":"RF7VZDWLH3X3XFKE","created_at":"2026-05-18T12:28:46.137349+00:00"},{"alias_kind":"pith_short_8","alias_value":"RF7VZDWL","created_at":"2026-05-18T12:28:46.137349+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/RF7VZDWLH3X3XFKEBNVEXP7XZT","json":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT.json","graph_json":"https://pith.science/api/pith-number/RF7VZDWLH3X3XFKEBNVEXP7XZT/graph.json","events_json":"https://pith.science/api/pith-number/RF7VZDWLH3X3XFKEBNVEXP7XZT/events.json","paper":"https://pith.science/paper/RF7VZDWL"},"agent_actions":{"view_html":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT","download_json":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT.json","view_paper":"https://pith.science/paper/RF7VZDWL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1409.4534&json=true","fetch_graph":"https://pith.science/api/pith-number/RF7VZDWLH3X3XFKEBNVEXP7XZT/graph.json","fetch_events":"https://pith.science/api/pith-number/RF7VZDWLH3X3XFKEBNVEXP7XZT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT/action/storage_attestation","attest_author":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT/action/author_attestation","sign_citation":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT/action/citation_signature","submit_replication":"https://pith.science/pith/RF7VZDWLH3X3XFKEBNVEXP7XZT/action/replication_record"}},"created_at":"2026-05-18T02:29:31.764732+00:00","updated_at":"2026-05-18T02:29:31.764732+00:00"}