{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:DNU24F6Q75WRHZEAHK4KVZ5DUD","short_pith_number":"pith:DNU24F6Q","schema_version":"1.0","canonical_sha256":"1b69ae17d0ff6d13e4803ab8aae7a3a0db9dd41ae9f2f30ce9e7f3024a8c836a","source":{"kind":"arxiv","id":"1707.07839","version":2},"attestation_state":"computed","paper":{"title":"Temperature-dependent evolutions of excitonic superfluid plasma frequency in a srong excitonic insulator candidate, Ta$_2$NiSe$_5$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Byung Il Min, Chang-Jong Kang, Jungseek Hwang, Jun Sung Kim, Man Jin Eom, Yu-Seong Seo","submitted_at":"2017-07-25T07:35:14Z","abstract_excerpt":"We investigate an interesting anisotropic van der Waals material, Ta$_{2}$NiSe$_{5}$, using optical spectroscopy. Ta$_{2}$NiSe$_{5}$ has been known as one of the few excitonic insulators proposed over 50 years ago. Ta$_{2}$NiSe$_{5}$ has quasi-one dimensional chains along the $a$-axis. We have obtained anisotropic optical properties of a single crystal Ta$_{2}$NiSe$_{5}$ along the $a$- and $c$-axes. The measured $a$- and $c$-axis optical conductivities exhibit large anisotropic electronic and phononic properties. With regard to the $a$-axis optical conductivity, a sharp peak near 3050 cm$^{-1}"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1707.07839","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-07-25T07:35:14Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"8e3ccf29d641ecfe3e5a567ad0a4f80e8b4ee34426955825d72c1f2bb7469424","abstract_canon_sha256":"f19fc4ce543ab96d277c0537ca0683fc0a642fe5dd85a742f8eca866ef6d09ef"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:50.699074Z","signature_b64":"GG8SnXhOQTa34/Zi2mTK9usLlOCgrMs/+YWpYSz1oSij5JORijedhwkEKJzUVPMekWUprujnUj/Hw8/ydhOJCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b69ae17d0ff6d13e4803ab8aae7a3a0db9dd41ae9f2f30ce9e7f3024a8c836a","last_reissued_at":"2026-05-18T00:07:50.698221Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:50.698221Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Temperature-dependent evolutions of excitonic superfluid plasma frequency in a srong excitonic insulator candidate, Ta$_2$NiSe$_5$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Byung Il Min, Chang-Jong Kang, Jungseek Hwang, Jun Sung Kim, Man Jin Eom, Yu-Seong Seo","submitted_at":"2017-07-25T07:35:14Z","abstract_excerpt":"We investigate an interesting anisotropic van der Waals material, Ta$_{2}$NiSe$_{5}$, using optical spectroscopy. Ta$_{2}$NiSe$_{5}$ has been known as one of the few excitonic insulators proposed over 50 years ago. Ta$_{2}$NiSe$_{5}$ has quasi-one dimensional chains along the $a$-axis. We have obtained anisotropic optical properties of a single crystal Ta$_{2}$NiSe$_{5}$ along the $a$- and $c$-axes. The measured $a$- and $c$-axis optical conductivities exhibit large anisotropic electronic and phononic properties. With regard to the $a$-axis optical conductivity, a sharp peak near 3050 cm$^{-1}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.07839","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":"1707.07839","created_at":"2026-05-18T00:07:50.698383+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.07839v2","created_at":"2026-05-18T00:07:50.698383+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.07839","created_at":"2026-05-18T00:07:50.698383+00:00"},{"alias_kind":"pith_short_12","alias_value":"DNU24F6Q75WR","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_16","alias_value":"DNU24F6Q75WRHZEA","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_8","alias_value":"DNU24F6Q","created_at":"2026-05-18T12:31:12.930513+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/DNU24F6Q75WRHZEAHK4KVZ5DUD","json":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD.json","graph_json":"https://pith.science/api/pith-number/DNU24F6Q75WRHZEAHK4KVZ5DUD/graph.json","events_json":"https://pith.science/api/pith-number/DNU24F6Q75WRHZEAHK4KVZ5DUD/events.json","paper":"https://pith.science/paper/DNU24F6Q"},"agent_actions":{"view_html":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD","download_json":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD.json","view_paper":"https://pith.science/paper/DNU24F6Q","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.07839&json=true","fetch_graph":"https://pith.science/api/pith-number/DNU24F6Q75WRHZEAHK4KVZ5DUD/graph.json","fetch_events":"https://pith.science/api/pith-number/DNU24F6Q75WRHZEAHK4KVZ5DUD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD/action/storage_attestation","attest_author":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD/action/author_attestation","sign_citation":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD/action/citation_signature","submit_replication":"https://pith.science/pith/DNU24F6Q75WRHZEAHK4KVZ5DUD/action/replication_record"}},"created_at":"2026-05-18T00:07:50.698383+00:00","updated_at":"2026-05-18T00:07:50.698383+00:00"}