{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:7N4XDZ2XPOIMU222ENM7QK6PI3","short_pith_number":"pith:7N4XDZ2X","schema_version":"1.0","canonical_sha256":"fb7971e7577b90ca6b5a2359f82bcf46f20481708cb9efee9dffcfafde4e7fa9","source":{"kind":"arxiv","id":"1105.4778","version":1},"attestation_state":"computed","paper":{"title":"Metallic Behavior of Cyclotron Relaxation Time in Two-Dimensional Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Akihito Sekine, Ippei Yasuda, Kentarou Sawano, Kohei Sasaki, Ryuichi Masutomi, Tohru Okamoto, Yasuhiro Shiraki","submitted_at":"2011-05-24T14:26:06Z","abstract_excerpt":"Cyclotron resonance of two-dimensional electrons is studied at low temperatures down to 0.4 K for a high-mobility Si/SiGe quantum well which exhibits a metallic temperature dependence of dc resistivity $\\rho$. The relaxation time $\\tau_{\\rm CR}$ shows a negative temperature dependence, which is similar to that of the transport scattering time $\\tau_t$ obtained from $\\rho$. The ratio $\\tau_{\\rm CR}/\\tau_t$ at 0.4 K increases as the electron density $N_s$ decreases, and exceeds unity when $N_s$ approaches the critical density for the metal-insulator transition."},"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":"1105.4778","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-05-24T14:26:06Z","cross_cats_sorted":[],"title_canon_sha256":"8495f0ffb694bb69edeb0004ebf376aed6192f2e8919aaeec43d3674bf044fd6","abstract_canon_sha256":"2afe8467f715b914212890fd5a68815ba20bd534dee51f3ac75fef15778400ce"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:51.704246Z","signature_b64":"+hHqapGAqy9cqgaLeU51igcap8kNuSgjsqBSZXnIJUIyvNO6WZhqm03PU3SlkriAdTFF5vFcU3pbJ4IytA09Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb7971e7577b90ca6b5a2359f82bcf46f20481708cb9efee9dffcfafde4e7fa9","last_reissued_at":"2026-05-18T02:01:51.703545Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:51.703545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Metallic Behavior of Cyclotron Relaxation Time in Two-Dimensional Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Akihito Sekine, Ippei Yasuda, Kentarou Sawano, Kohei Sasaki, Ryuichi Masutomi, Tohru Okamoto, Yasuhiro Shiraki","submitted_at":"2011-05-24T14:26:06Z","abstract_excerpt":"Cyclotron resonance of two-dimensional electrons is studied at low temperatures down to 0.4 K for a high-mobility Si/SiGe quantum well which exhibits a metallic temperature dependence of dc resistivity $\\rho$. The relaxation time $\\tau_{\\rm CR}$ shows a negative temperature dependence, which is similar to that of the transport scattering time $\\tau_t$ obtained from $\\rho$. The ratio $\\tau_{\\rm CR}/\\tau_t$ at 0.4 K increases as the electron density $N_s$ decreases, and exceeds unity when $N_s$ approaches the critical density for the metal-insulator transition."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.4778","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":"1105.4778","created_at":"2026-05-18T02:01:51.703645+00:00"},{"alias_kind":"arxiv_version","alias_value":"1105.4778v1","created_at":"2026-05-18T02:01:51.703645+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.4778","created_at":"2026-05-18T02:01:51.703645+00:00"},{"alias_kind":"pith_short_12","alias_value":"7N4XDZ2XPOIM","created_at":"2026-05-18T12:26:22.705136+00:00"},{"alias_kind":"pith_short_16","alias_value":"7N4XDZ2XPOIMU222","created_at":"2026-05-18T12:26:22.705136+00:00"},{"alias_kind":"pith_short_8","alias_value":"7N4XDZ2X","created_at":"2026-05-18T12:26:22.705136+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/7N4XDZ2XPOIMU222ENM7QK6PI3","json":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3.json","graph_json":"https://pith.science/api/pith-number/7N4XDZ2XPOIMU222ENM7QK6PI3/graph.json","events_json":"https://pith.science/api/pith-number/7N4XDZ2XPOIMU222ENM7QK6PI3/events.json","paper":"https://pith.science/paper/7N4XDZ2X"},"agent_actions":{"view_html":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3","download_json":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3.json","view_paper":"https://pith.science/paper/7N4XDZ2X","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1105.4778&json=true","fetch_graph":"https://pith.science/api/pith-number/7N4XDZ2XPOIMU222ENM7QK6PI3/graph.json","fetch_events":"https://pith.science/api/pith-number/7N4XDZ2XPOIMU222ENM7QK6PI3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/action/storage_attestation","attest_author":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/action/author_attestation","sign_citation":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/action/citation_signature","submit_replication":"https://pith.science/pith/7N4XDZ2XPOIMU222ENM7QK6PI3/action/replication_record"}},"created_at":"2026-05-18T02:01:51.703645+00:00","updated_at":"2026-05-18T02:01:51.703645+00:00"}