{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:NUUIGZPRKCH66ZKTWW46MRJVBP","short_pith_number":"pith:NUUIGZPR","schema_version":"1.0","canonical_sha256":"6d288365f1508fef6553b5b9e645350bea633e41c2f652447e60aa0c56d46d7c","source":{"kind":"arxiv","id":"1409.6888","version":1},"attestation_state":"computed","paper":{"title":"Picosecond strain dynamics in Ge$_{2}$Sb$_{2}$Te$_{5}$ monitored by time-resolved x-ray diffraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alessandro Giussani, Alexander V. Kolobov, Henning Riechert, Junji Tominaga, Kirill V. Mitrofanov, Michael Hanke, Muneaki Hase, Paul Fons, Peter Rodenbach, Raffaella Calarco, Robert E. Simpson, Roman Shayduk","submitted_at":"2014-09-24T10:25:16Z","abstract_excerpt":"Coherent phonons (CP) generated by laser pulses on the femtosecond scale have been proposed as a means to achieve ultrafast, non-thermal switching in phase-change materials such as Ge$_{2}$Sb$_{2}$Te$_{5}$(GST). Here we use ultrafast optical pump pulses to induce coherent acoustic phonons and stroboscopically measure the corresponding lattice distortions in GST using 100 ps x-ray pulses from the ESRF storage ring. A linear-chain model provides a good description of the observed changes in the diffraction signal, however, the magnitudes of the measured shifts are too large to be explained by th"},"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":"1409.6888","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2014-09-24T10:25:16Z","cross_cats_sorted":[],"title_canon_sha256":"8520c9677aeea533234ea30b312674cdd3ac5ec92aa57ec58e377378b398d65c","abstract_canon_sha256":"5c961deb9eec828d4110c20560068af70cafb76347240ea06c90ddbf098c9a75"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:41:40.845543Z","signature_b64":"l126CC6UF4dNJJ82QmSnFtUGN6hcXTtiN/zDqVTHVXhPptoHlFK/w2mGdV3lPPeQ8BQWm4csb+l0XVZHRXraBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d288365f1508fef6553b5b9e645350bea633e41c2f652447e60aa0c56d46d7c","last_reissued_at":"2026-05-18T02:41:40.844798Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:41:40.844798Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Picosecond strain dynamics in Ge$_{2}$Sb$_{2}$Te$_{5}$ monitored by time-resolved x-ray diffraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alessandro Giussani, Alexander V. Kolobov, Henning Riechert, Junji Tominaga, Kirill V. Mitrofanov, Michael Hanke, Muneaki Hase, Paul Fons, Peter Rodenbach, Raffaella Calarco, Robert E. Simpson, Roman Shayduk","submitted_at":"2014-09-24T10:25:16Z","abstract_excerpt":"Coherent phonons (CP) generated by laser pulses on the femtosecond scale have been proposed as a means to achieve ultrafast, non-thermal switching in phase-change materials such as Ge$_{2}$Sb$_{2}$Te$_{5}$(GST). Here we use ultrafast optical pump pulses to induce coherent acoustic phonons and stroboscopically measure the corresponding lattice distortions in GST using 100 ps x-ray pulses from the ESRF storage ring. A linear-chain model provides a good description of the observed changes in the diffraction signal, however, the magnitudes of the measured shifts are too large to be explained by th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6888","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":"1409.6888","created_at":"2026-05-18T02:41:40.844906+00:00"},{"alias_kind":"arxiv_version","alias_value":"1409.6888v1","created_at":"2026-05-18T02:41:40.844906+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6888","created_at":"2026-05-18T02:41:40.844906+00:00"},{"alias_kind":"pith_short_12","alias_value":"NUUIGZPRKCH6","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_16","alias_value":"NUUIGZPRKCH66ZKT","created_at":"2026-05-18T12:28:41.024544+00:00"},{"alias_kind":"pith_short_8","alias_value":"NUUIGZPR","created_at":"2026-05-18T12:28:41.024544+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/NUUIGZPRKCH66ZKTWW46MRJVBP","json":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP.json","graph_json":"https://pith.science/api/pith-number/NUUIGZPRKCH66ZKTWW46MRJVBP/graph.json","events_json":"https://pith.science/api/pith-number/NUUIGZPRKCH66ZKTWW46MRJVBP/events.json","paper":"https://pith.science/paper/NUUIGZPR"},"agent_actions":{"view_html":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP","download_json":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP.json","view_paper":"https://pith.science/paper/NUUIGZPR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1409.6888&json=true","fetch_graph":"https://pith.science/api/pith-number/NUUIGZPRKCH66ZKTWW46MRJVBP/graph.json","fetch_events":"https://pith.science/api/pith-number/NUUIGZPRKCH66ZKTWW46MRJVBP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP/action/storage_attestation","attest_author":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP/action/author_attestation","sign_citation":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP/action/citation_signature","submit_replication":"https://pith.science/pith/NUUIGZPRKCH66ZKTWW46MRJVBP/action/replication_record"}},"created_at":"2026-05-18T02:41:40.844906+00:00","updated_at":"2026-05-18T02:41:40.844906+00:00"}