{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:SPCJAFWV6IE7QK5FODZ4T3XAW5","short_pith_number":"pith:SPCJAFWV","schema_version":"1.0","canonical_sha256":"93c49016d5f209f82ba570f3c9eee0b752d8dc9f0d7cd00cf52488a8e8e2b427","source":{"kind":"arxiv","id":"1810.10487","version":1},"attestation_state":"computed","paper":{"title":"Free-carrier dynamics in Au$_{2}$Pb probed by optical conductivity measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. L\\\"ohle, A V. Pronin, D. Neubauer, I. Voloshenko, L. M. Schoop, M. Dressel, R. H\\\"ubner, R. Kemmler","submitted_at":"2018-10-24T16:51:26Z","abstract_excerpt":"We measured the optical reflectivity of the Dirac material Au$_{2}$Pb in a broad frequency range (30 - 48 000 cm$^{-1}$) for temperatures between 9 and 300 K. The optical conductivity, computed from the reflectivity, is dominated by free-carrier contributions from topologically trivial bulk bands at all temperatures. The temperature-independent total plasma frequency of these carriers is 3.9 $\\pm$ 0.2 eV. Overall, optical response of Au$_{2}$Pb is typically metallic with no signs of localization and bad-metal behavior."},"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":"1810.10487","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-24T16:51:26Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"1c07803f0b4327d9e6507a1bbe602ff2180a6feef4fd460fe34fe3dc76fe2e31","abstract_canon_sha256":"8f99f4a18e2338db7a9f478a299dd01aef8400df42e761b183dab0cb2fb8b6b2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:00:47.105106Z","signature_b64":"mv1nZQQn4ONPImlVd9AJOE8v8xiUscnzyd6RAqEyppIEjURCtgl2/fQwGtF+Ii+wbi0ryjkE8yMopAASGW/QAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"93c49016d5f209f82ba570f3c9eee0b752d8dc9f0d7cd00cf52488a8e8e2b427","last_reissued_at":"2026-05-18T00:00:47.104726Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:00:47.104726Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Free-carrier dynamics in Au$_{2}$Pb probed by optical conductivity measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"primary_cat":"cond-mat.mes-hall","authors_text":"A. L\\\"ohle, A V. Pronin, D. Neubauer, I. Voloshenko, L. M. Schoop, M. Dressel, R. H\\\"ubner, R. Kemmler","submitted_at":"2018-10-24T16:51:26Z","abstract_excerpt":"We measured the optical reflectivity of the Dirac material Au$_{2}$Pb in a broad frequency range (30 - 48 000 cm$^{-1}$) for temperatures between 9 and 300 K. The optical conductivity, computed from the reflectivity, is dominated by free-carrier contributions from topologically trivial bulk bands at all temperatures. The temperature-independent total plasma frequency of these carriers is 3.9 $\\pm$ 0.2 eV. Overall, optical response of Au$_{2}$Pb is typically metallic with no signs of localization and bad-metal behavior."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.10487","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":"1810.10487","created_at":"2026-05-18T00:00:47.104784+00:00"},{"alias_kind":"arxiv_version","alias_value":"1810.10487v1","created_at":"2026-05-18T00:00:47.104784+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.10487","created_at":"2026-05-18T00:00:47.104784+00:00"},{"alias_kind":"pith_short_12","alias_value":"SPCJAFWV6IE7","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_16","alias_value":"SPCJAFWV6IE7QK5F","created_at":"2026-05-18T12:32:53.628368+00:00"},{"alias_kind":"pith_short_8","alias_value":"SPCJAFWV","created_at":"2026-05-18T12:32:53.628368+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/SPCJAFWV6IE7QK5FODZ4T3XAW5","json":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5.json","graph_json":"https://pith.science/api/pith-number/SPCJAFWV6IE7QK5FODZ4T3XAW5/graph.json","events_json":"https://pith.science/api/pith-number/SPCJAFWV6IE7QK5FODZ4T3XAW5/events.json","paper":"https://pith.science/paper/SPCJAFWV"},"agent_actions":{"view_html":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5","download_json":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5.json","view_paper":"https://pith.science/paper/SPCJAFWV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1810.10487&json=true","fetch_graph":"https://pith.science/api/pith-number/SPCJAFWV6IE7QK5FODZ4T3XAW5/graph.json","fetch_events":"https://pith.science/api/pith-number/SPCJAFWV6IE7QK5FODZ4T3XAW5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5/action/storage_attestation","attest_author":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5/action/author_attestation","sign_citation":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5/action/citation_signature","submit_replication":"https://pith.science/pith/SPCJAFWV6IE7QK5FODZ4T3XAW5/action/replication_record"}},"created_at":"2026-05-18T00:00:47.104784+00:00","updated_at":"2026-05-18T00:00:47.104784+00:00"}