{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:C7UG6W3F5B3C6YRXSVB7D6TJT7","short_pith_number":"pith:C7UG6W3F","schema_version":"1.0","canonical_sha256":"17e86f5b65e8762f62379543f1fa699ffb567768ff94b290c07a8cef5d4ad974","source":{"kind":"arxiv","id":"1204.6463","version":1},"attestation_state":"computed","paper":{"title":"Coherent phonon dynamics at the martensitic phase transition of Ni_2MnGa","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Caviezel, C. Quitmann, G. Ingold, P. Beaud, S. O. Mariager","submitted_at":"2012-04-29T08:36:17Z","abstract_excerpt":"We use time-resolved optical reflectivity to study the laser stimulated dynamics in the magnetic shape memory alloy Ni_2MnGa. We observe two coherent optical phonons, at 1.2 THz in the martensite phase and at 0.7 THz in the pre-martensite phase, which we interpret as a zone-folded acoustic phonon and a heavily damped amplitudon respectively. In the martensite phase the martensitic phase transition can be induced by a fs laser pulse on a timescale of a few ps."},"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":"1204.6463","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-04-29T08:36:17Z","cross_cats_sorted":[],"title_canon_sha256":"b95f841b6e565b51c2604d7065a7703a1872500aaa03578f40a32d5ffae5aba7","abstract_canon_sha256":"855ffcb021cd555d3067c0ba976105ebf5086da271c49134a90707e0f0cddfa9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:16.032902Z","signature_b64":"3GTkJk3t35/tgOsUYJdr5Wuap3D7EPHtJySOPO49K5Feq0nc+ioxfM5gswiDFQ4+HhNVkaczHARB34AvfT4ZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17e86f5b65e8762f62379543f1fa699ffb567768ff94b290c07a8cef5d4ad974","last_reissued_at":"2026-05-18T03:36:16.032243Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:16.032243Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coherent phonon dynamics at the martensitic phase transition of Ni_2MnGa","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. Caviezel, C. Quitmann, G. Ingold, P. Beaud, S. O. Mariager","submitted_at":"2012-04-29T08:36:17Z","abstract_excerpt":"We use time-resolved optical reflectivity to study the laser stimulated dynamics in the magnetic shape memory alloy Ni_2MnGa. We observe two coherent optical phonons, at 1.2 THz in the martensite phase and at 0.7 THz in the pre-martensite phase, which we interpret as a zone-folded acoustic phonon and a heavily damped amplitudon respectively. In the martensite phase the martensitic phase transition can be induced by a fs laser pulse on a timescale of a few ps."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.6463","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":"1204.6463","created_at":"2026-05-18T03:36:16.032360+00:00"},{"alias_kind":"arxiv_version","alias_value":"1204.6463v1","created_at":"2026-05-18T03:36:16.032360+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.6463","created_at":"2026-05-18T03:36:16.032360+00:00"},{"alias_kind":"pith_short_12","alias_value":"C7UG6W3F5B3C","created_at":"2026-05-18T12:27:01.376967+00:00"},{"alias_kind":"pith_short_16","alias_value":"C7UG6W3F5B3C6YRX","created_at":"2026-05-18T12:27:01.376967+00:00"},{"alias_kind":"pith_short_8","alias_value":"C7UG6W3F","created_at":"2026-05-18T12:27:01.376967+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/C7UG6W3F5B3C6YRXSVB7D6TJT7","json":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7.json","graph_json":"https://pith.science/api/pith-number/C7UG6W3F5B3C6YRXSVB7D6TJT7/graph.json","events_json":"https://pith.science/api/pith-number/C7UG6W3F5B3C6YRXSVB7D6TJT7/events.json","paper":"https://pith.science/paper/C7UG6W3F"},"agent_actions":{"view_html":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7","download_json":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7.json","view_paper":"https://pith.science/paper/C7UG6W3F","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1204.6463&json=true","fetch_graph":"https://pith.science/api/pith-number/C7UG6W3F5B3C6YRXSVB7D6TJT7/graph.json","fetch_events":"https://pith.science/api/pith-number/C7UG6W3F5B3C6YRXSVB7D6TJT7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7/action/storage_attestation","attest_author":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7/action/author_attestation","sign_citation":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7/action/citation_signature","submit_replication":"https://pith.science/pith/C7UG6W3F5B3C6YRXSVB7D6TJT7/action/replication_record"}},"created_at":"2026-05-18T03:36:16.032360+00:00","updated_at":"2026-05-18T03:36:16.032360+00:00"}