{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:OCKP3J7BPFPIBPV7NOMUMVC3VQ","short_pith_number":"pith:OCKP3J7B","schema_version":"1.0","canonical_sha256":"7094fda7e1795e80bebf6b9946545bac1236446a29af3dde418ae4517fe1bed7","source":{"kind":"arxiv","id":"0906.0975","version":2},"attestation_state":"computed","paper":{"title":"Electron-electron interactions and doping dependence of the two-phonon Raman intensity in graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. C. Ferrari, D. M. Basko, S. Piscanec","submitted_at":"2009-06-04T19:54:09Z","abstract_excerpt":"Raman spectroscopy is a fast, non-destructive means to characterize graphene samples. In particular, the Raman spectra show a significant dependence on doping. While the change in position and width of the G peak can be explained by the non-adiabatic Kohn anomaly at $\\Gamma$, the significant doping dependence of the 2D peak intensity has not been explained yet. Here we show that this is due to a combination of electron-phonon and electron-electron scattering. Under full resonance, the photogenerated electron-hole pairs can scatter not just with phonons, but also with doping-induced electrons o"},"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":"0906.0975","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-06-04T19:54:09Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"7c7add0b24a99f468a23754ca976d02f1f6ae6679b11436a55a93a22fbe085f2","abstract_canon_sha256":"9db5c2cbac1e58f9efcfab4ad19b1cf50e3594c187070750583a3eea83581c7b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:13:28.937245Z","signature_b64":"NnbpM2VMNLQVNcS/pzsItZMezwr8L5wp/D/lqSKIqbattO4to/ozQNDAF2Hgx/HzHSNzlN6QIZj6Ftl1rGmBCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7094fda7e1795e80bebf6b9946545bac1236446a29af3dde418ae4517fe1bed7","last_reissued_at":"2026-05-18T02:13:28.936759Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:13:28.936759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Electron-electron interactions and doping dependence of the two-phonon Raman intensity in graphene","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. C. Ferrari, D. M. Basko, S. Piscanec","submitted_at":"2009-06-04T19:54:09Z","abstract_excerpt":"Raman spectroscopy is a fast, non-destructive means to characterize graphene samples. In particular, the Raman spectra show a significant dependence on doping. While the change in position and width of the G peak can be explained by the non-adiabatic Kohn anomaly at $\\Gamma$, the significant doping dependence of the 2D peak intensity has not been explained yet. Here we show that this is due to a combination of electron-phonon and electron-electron scattering. Under full resonance, the photogenerated electron-hole pairs can scatter not just with phonons, but also with doping-induced electrons o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0906.0975","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":"0906.0975","created_at":"2026-05-18T02:13:28.936838+00:00"},{"alias_kind":"arxiv_version","alias_value":"0906.0975v2","created_at":"2026-05-18T02:13:28.936838+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0906.0975","created_at":"2026-05-18T02:13:28.936838+00:00"},{"alias_kind":"pith_short_12","alias_value":"OCKP3J7BPFPI","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_16","alias_value":"OCKP3J7BPFPIBPV7","created_at":"2026-05-18T12:26:01.383474+00:00"},{"alias_kind":"pith_short_8","alias_value":"OCKP3J7B","created_at":"2026-05-18T12:26:01.383474+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/OCKP3J7BPFPIBPV7NOMUMVC3VQ","json":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ.json","graph_json":"https://pith.science/api/pith-number/OCKP3J7BPFPIBPV7NOMUMVC3VQ/graph.json","events_json":"https://pith.science/api/pith-number/OCKP3J7BPFPIBPV7NOMUMVC3VQ/events.json","paper":"https://pith.science/paper/OCKP3J7B"},"agent_actions":{"view_html":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ","download_json":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ.json","view_paper":"https://pith.science/paper/OCKP3J7B","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0906.0975&json=true","fetch_graph":"https://pith.science/api/pith-number/OCKP3J7BPFPIBPV7NOMUMVC3VQ/graph.json","fetch_events":"https://pith.science/api/pith-number/OCKP3J7BPFPIBPV7NOMUMVC3VQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ/action/storage_attestation","attest_author":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ/action/author_attestation","sign_citation":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ/action/citation_signature","submit_replication":"https://pith.science/pith/OCKP3J7BPFPIBPV7NOMUMVC3VQ/action/replication_record"}},"created_at":"2026-05-18T02:13:28.936838+00:00","updated_at":"2026-05-18T02:13:28.936838+00:00"}