{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:RSG23PVGTL5KI6AJL3D7CPJ54G","short_pith_number":"pith:RSG23PVG","schema_version":"1.0","canonical_sha256":"8c8dadbea69afaa478095ec7f13d3de1ab334b483c88f88d13d86bd1c60adb78","source":{"kind":"arxiv","id":"1005.3850","version":2},"attestation_state":"computed","paper":{"title":"Hot carrier diffusion in graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Ben Weintrub, Brian A. Ruzicka, Hui Zhao, Kian Ping Loh, Lalani K. Werake, Shuai Wang","submitted_at":"2010-05-20T22:29:25Z","abstract_excerpt":"We report an optical study of charge transport in graphene. Diffusion of hot carriers in epitaxial graphene and reduced graphene oxide samples are studied using an ultrafast pump-probe technique with a high spatial resolution. Spatiotemporal dynamics of hot carriers after a point-like excitation are monitored. Carrier diffusion coefficients of 11,000 and 5,500 squared centimeters per second are measured in epitaxial graphene and reduced graphene oxide samples, respectively, with a carrier temperature on the order of 3,600 K. The demonstrated optical techniques can be used for non-contact and n"},"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":"1005.3850","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2010-05-20T22:29:25Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"9ec89e9098469726f0a1c2efea38fa475ce5b4d7499e2dae4e2379ac7e438c4c","abstract_canon_sha256":"6e8836972dda15ea0ac35eb3823819927382d50b1cf9db4aed8614ef40065e0d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:23:56.379875Z","signature_b64":"Kcb8jSfaTC3L+OnBaqwtIEsNEMGjcECWuPyFSGoUKt2YLbWwVbyIZHdte6tTdctHjFeXpan/4iueqGTVFz3jAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8c8dadbea69afaa478095ec7f13d3de1ab334b483c88f88d13d86bd1c60adb78","last_reissued_at":"2026-05-18T02:23:56.379184Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:23:56.379184Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Hot carrier diffusion in graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Ben Weintrub, Brian A. Ruzicka, Hui Zhao, Kian Ping Loh, Lalani K. Werake, Shuai Wang","submitted_at":"2010-05-20T22:29:25Z","abstract_excerpt":"We report an optical study of charge transport in graphene. Diffusion of hot carriers in epitaxial graphene and reduced graphene oxide samples are studied using an ultrafast pump-probe technique with a high spatial resolution. Spatiotemporal dynamics of hot carriers after a point-like excitation are monitored. Carrier diffusion coefficients of 11,000 and 5,500 squared centimeters per second are measured in epitaxial graphene and reduced graphene oxide samples, respectively, with a carrier temperature on the order of 3,600 K. The demonstrated optical techniques can be used for non-contact and n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1005.3850","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":"1005.3850","created_at":"2026-05-18T02:23:56.379283+00:00"},{"alias_kind":"arxiv_version","alias_value":"1005.3850v2","created_at":"2026-05-18T02:23:56.379283+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1005.3850","created_at":"2026-05-18T02:23:56.379283+00:00"},{"alias_kind":"pith_short_12","alias_value":"RSG23PVGTL5K","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_16","alias_value":"RSG23PVGTL5KI6AJ","created_at":"2026-05-18T12:26:13.927090+00:00"},{"alias_kind":"pith_short_8","alias_value":"RSG23PVG","created_at":"2026-05-18T12:26:13.927090+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/RSG23PVGTL5KI6AJL3D7CPJ54G","json":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G.json","graph_json":"https://pith.science/api/pith-number/RSG23PVGTL5KI6AJL3D7CPJ54G/graph.json","events_json":"https://pith.science/api/pith-number/RSG23PVGTL5KI6AJL3D7CPJ54G/events.json","paper":"https://pith.science/paper/RSG23PVG"},"agent_actions":{"view_html":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G","download_json":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G.json","view_paper":"https://pith.science/paper/RSG23PVG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1005.3850&json=true","fetch_graph":"https://pith.science/api/pith-number/RSG23PVGTL5KI6AJL3D7CPJ54G/graph.json","fetch_events":"https://pith.science/api/pith-number/RSG23PVGTL5KI6AJL3D7CPJ54G/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G/action/storage_attestation","attest_author":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G/action/author_attestation","sign_citation":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G/action/citation_signature","submit_replication":"https://pith.science/pith/RSG23PVGTL5KI6AJL3D7CPJ54G/action/replication_record"}},"created_at":"2026-05-18T02:23:56.379283+00:00","updated_at":"2026-05-18T02:23:56.379283+00:00"}