{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:W2ZB4VVRLCG7ZUFWCLXFOP2CUI","short_pith_number":"pith:W2ZB4VVR","schema_version":"1.0","canonical_sha256":"b6b21e56b1588dfcd0b612ee573f42a23c73cae1e36b2244e29bb3c5402ec0c7","source":{"kind":"arxiv","id":"cond-mat/0608543","version":5},"attestation_state":"computed","paper":{"title":"Electron-Phonon Coupling and Raman Spectroscopy in Graphene","license":"","headline":"","cross_cats":["cond-mat.dis-nn"],"primary_cat":"cond-mat.str-el","authors_text":"A. H. Castro Neto (BU), Francisco Guinea (ICMM)","submitted_at":"2006-08-24T20:00:18Z","abstract_excerpt":"We show that the electron-phonon coupling in graphene, in contrast with the non-relativistic two-dimensional electron gas, leads to shifts in the phonon frequencies that are non-trivial functions of the electronic density. These shifts can be measured directly in Raman spectroscopy. We show that depending whether the chemical potential is smaller (larger) than half of the phonon frequency, the frequency shift can negative (positive) relative to the neutral case (when the chemical potential is at the Dirac point), respectively. We show that the use of the static response function to calculate t"},"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":"cond-mat/0608543","kind":"arxiv","version":5},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2006-08-24T20:00:18Z","cross_cats_sorted":["cond-mat.dis-nn"],"title_canon_sha256":"d811d87bf6240904cc0b9c9b835aa0b5e97e9cc5c9a07b3f1baf586590272aac","abstract_canon_sha256":"206a1e40f05c7260e07a1a1f8161feb83d27e9b51f4516ee176b8605a8713db4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:24:31.223262Z","signature_b64":"/bHT2DAuXirI0rTsswsr6b0oXqYB0AmiXUVEOrmZ3Q7GV66hAi+8QxEwzexfmpj8D9sTTo6gBKnX3KqfLBTIAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b6b21e56b1588dfcd0b612ee573f42a23c73cae1e36b2244e29bb3c5402ec0c7","last_reissued_at":"2026-05-18T03:24:31.222836Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:24:31.222836Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Electron-Phonon Coupling and Raman Spectroscopy in Graphene","license":"","headline":"","cross_cats":["cond-mat.dis-nn"],"primary_cat":"cond-mat.str-el","authors_text":"A. H. Castro Neto (BU), Francisco Guinea (ICMM)","submitted_at":"2006-08-24T20:00:18Z","abstract_excerpt":"We show that the electron-phonon coupling in graphene, in contrast with the non-relativistic two-dimensional electron gas, leads to shifts in the phonon frequencies that are non-trivial functions of the electronic density. These shifts can be measured directly in Raman spectroscopy. We show that depending whether the chemical potential is smaller (larger) than half of the phonon frequency, the frequency shift can negative (positive) relative to the neutral case (when the chemical potential is at the Dirac point), respectively. We show that the use of the static response function to calculate t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0608543","kind":"arxiv","version":5},"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":"cond-mat/0608543","created_at":"2026-05-18T03:24:31.222895+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0608543v5","created_at":"2026-05-18T03:24:31.222895+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0608543","created_at":"2026-05-18T03:24:31.222895+00:00"},{"alias_kind":"pith_short_12","alias_value":"W2ZB4VVRLCG7","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_16","alias_value":"W2ZB4VVRLCG7ZUFW","created_at":"2026-05-18T12:25:54.717736+00:00"},{"alias_kind":"pith_short_8","alias_value":"W2ZB4VVR","created_at":"2026-05-18T12:25:54.717736+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/W2ZB4VVRLCG7ZUFWCLXFOP2CUI","json":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI.json","graph_json":"https://pith.science/api/pith-number/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/graph.json","events_json":"https://pith.science/api/pith-number/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/events.json","paper":"https://pith.science/paper/W2ZB4VVR"},"agent_actions":{"view_html":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI","download_json":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI.json","view_paper":"https://pith.science/paper/W2ZB4VVR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0608543&json=true","fetch_graph":"https://pith.science/api/pith-number/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/graph.json","fetch_events":"https://pith.science/api/pith-number/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/action/storage_attestation","attest_author":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/action/author_attestation","sign_citation":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/action/citation_signature","submit_replication":"https://pith.science/pith/W2ZB4VVRLCG7ZUFWCLXFOP2CUI/action/replication_record"}},"created_at":"2026-05-18T03:24:31.222895+00:00","updated_at":"2026-05-18T03:24:31.222895+00:00"}