{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:2J75DAAXL2ZTNVAFB72SZN3JW2","short_pith_number":"pith:2J75DAAX","schema_version":"1.0","canonical_sha256":"d27fd180175eb336d4050ff52cb769b6ac9f632cea24f07fd263800c7e9480ee","source":{"kind":"arxiv","id":"1410.3437","version":1},"attestation_state":"computed","paper":{"title":"Distinguishing bulk and surface electron-phonon coupling in the topological insulator Bi2Se3 using time-resolved photoemission spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Alexander F. Kemper, Dominik Leuenberger, Ian R. Fisher, James G. Analytis, Jonathan A. Sobota, Patrick S. Kirchmann, Shuolong Yang, Thomas P. Devereaux, Zhi-Xun Shen","submitted_at":"2014-10-13T19:02:03Z","abstract_excerpt":"We report time- and angle-resolved photoemission spectroscopy measurements on the topological insulator Bi2Se3. We observe oscillatory modulations of the electronic structure of both the bulk and surface states at a frequency of 2.23 THz due to coherent excitation of an A1g phonon mode. A distinct, additional frequency of 2.05 THz is observed in the surface state only. The lower phonon frequency at the surface is attributed to the termination of the crystal and thus reduction of interlayer van der Waals forces, which serve as restorative forces for out-of-plane lattice distortions. DFT calcula"},"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":"1410.3437","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-10-13T19:02:03Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"a06bc4285b7aa8fb98dbad9aacefa0f175c64362c38a48f96d317fe7b24f3f34","abstract_canon_sha256":"c5b185857f293ec6cfa52aa9baf6fafbfd264b10b1dafb0cd30cef26c8b95378"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:40:11.327852Z","signature_b64":"BcpOBhtshRLgZfuzNreZ0/k6mDcyN8Wykyc53L+pMDcNPuxD3TE8ZsqvzibmjAqdl0EEmoxv1+W0BVnUPV3/Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d27fd180175eb336d4050ff52cb769b6ac9f632cea24f07fd263800c7e9480ee","last_reissued_at":"2026-05-18T02:40:11.327391Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:40:11.327391Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Distinguishing bulk and surface electron-phonon coupling in the topological insulator Bi2Se3 using time-resolved photoemission spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Alexander F. Kemper, Dominik Leuenberger, Ian R. Fisher, James G. Analytis, Jonathan A. Sobota, Patrick S. Kirchmann, Shuolong Yang, Thomas P. Devereaux, Zhi-Xun Shen","submitted_at":"2014-10-13T19:02:03Z","abstract_excerpt":"We report time- and angle-resolved photoemission spectroscopy measurements on the topological insulator Bi2Se3. We observe oscillatory modulations of the electronic structure of both the bulk and surface states at a frequency of 2.23 THz due to coherent excitation of an A1g phonon mode. A distinct, additional frequency of 2.05 THz is observed in the surface state only. The lower phonon frequency at the surface is attributed to the termination of the crystal and thus reduction of interlayer van der Waals forces, which serve as restorative forces for out-of-plane lattice distortions. DFT calcula"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.3437","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":"1410.3437","created_at":"2026-05-18T02:40:11.327451+00:00"},{"alias_kind":"arxiv_version","alias_value":"1410.3437v1","created_at":"2026-05-18T02:40:11.327451+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.3437","created_at":"2026-05-18T02:40:11.327451+00:00"},{"alias_kind":"pith_short_12","alias_value":"2J75DAAXL2ZT","created_at":"2026-05-18T12:28:11.866339+00:00"},{"alias_kind":"pith_short_16","alias_value":"2J75DAAXL2ZTNVAF","created_at":"2026-05-18T12:28:11.866339+00:00"},{"alias_kind":"pith_short_8","alias_value":"2J75DAAX","created_at":"2026-05-18T12:28:11.866339+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/2J75DAAXL2ZTNVAFB72SZN3JW2","json":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2.json","graph_json":"https://pith.science/api/pith-number/2J75DAAXL2ZTNVAFB72SZN3JW2/graph.json","events_json":"https://pith.science/api/pith-number/2J75DAAXL2ZTNVAFB72SZN3JW2/events.json","paper":"https://pith.science/paper/2J75DAAX"},"agent_actions":{"view_html":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2","download_json":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2.json","view_paper":"https://pith.science/paper/2J75DAAX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1410.3437&json=true","fetch_graph":"https://pith.science/api/pith-number/2J75DAAXL2ZTNVAFB72SZN3JW2/graph.json","fetch_events":"https://pith.science/api/pith-number/2J75DAAXL2ZTNVAFB72SZN3JW2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2/action/storage_attestation","attest_author":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2/action/author_attestation","sign_citation":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2/action/citation_signature","submit_replication":"https://pith.science/pith/2J75DAAXL2ZTNVAFB72SZN3JW2/action/replication_record"}},"created_at":"2026-05-18T02:40:11.327451+00:00","updated_at":"2026-05-18T02:40:11.327451+00:00"}