{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:NZOXR2RWNBUK5B5DO3IMGQT642","short_pith_number":"pith:NZOXR2RW","schema_version":"1.0","canonical_sha256":"6e5d78ea366868ae87a376d0c3427ee68d92e86cefa136e0d531c675b48fd26d","source":{"kind":"arxiv","id":"1702.03774","version":2},"attestation_state":"computed","paper":{"title":"Nematic Fluctuations and Phase Transitions in LaFeAsO: a Raman Scattering Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"A. F. Garcia-Flores, D. Vaknin, E. Granado, G. E. Barberis, J. Q. Yan, P. F. Gomes, T. A. Lograsso, U. F. Kaneko","submitted_at":"2017-02-13T13:53:59Z","abstract_excerpt":"Raman scattering experiments on LaFeAsO with splitted antiferromagnetic (T_AFM = 140 K) and tetragonal-orthorhombic (T_S = 155 K) transitions show a quasi-elastic peak (QEP) in B2g symmetry (2 Fe tetragonal cell) that fades away below ~T_AFM and is ascribed to electronic nematic fluctuations. A scaling of the reported shear modulus with the T-dependence of the QEP height rather than the QEP area indicates that magnetic degrees of freedom drive the structural transition. The large separation between T_S and T_AFM in LaFeAsO compared with their coincidence in BaFe2As2 manifests itself in slower "},"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":"1702.03774","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-02-13T13:53:59Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.supr-con"],"title_canon_sha256":"fde3a3c4c8ea84a13d58e64c2f14e9736a0ede45aff0f78b6f006c73b1508567","abstract_canon_sha256":"8d7f40abb0af99ad03e93dbe8eae26014153d9a4191b70478f09d28e62485eed"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:23.946868Z","signature_b64":"S7c/bM9zWM4KwjKsp9M0NNCsjORxG95JlUFR19uIRH9kGRKhJwKqPLA0NlMCs7QkvQYOqNJfGrD9JQ7Cavh1AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e5d78ea366868ae87a376d0c3427ee68d92e86cefa136e0d531c675b48fd26d","last_reissued_at":"2026-05-18T00:40:23.946302Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:23.946302Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nematic Fluctuations and Phase Transitions in LaFeAsO: a Raman Scattering Study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.supr-con"],"primary_cat":"cond-mat.str-el","authors_text":"A. F. Garcia-Flores, D. Vaknin, E. Granado, G. E. Barberis, J. Q. Yan, P. F. Gomes, T. A. Lograsso, U. F. Kaneko","submitted_at":"2017-02-13T13:53:59Z","abstract_excerpt":"Raman scattering experiments on LaFeAsO with splitted antiferromagnetic (T_AFM = 140 K) and tetragonal-orthorhombic (T_S = 155 K) transitions show a quasi-elastic peak (QEP) in B2g symmetry (2 Fe tetragonal cell) that fades away below ~T_AFM and is ascribed to electronic nematic fluctuations. A scaling of the reported shear modulus with the T-dependence of the QEP height rather than the QEP area indicates that magnetic degrees of freedom drive the structural transition. The large separation between T_S and T_AFM in LaFeAsO compared with their coincidence in BaFe2As2 manifests itself in slower "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.03774","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":"1702.03774","created_at":"2026-05-18T00:40:23.946407+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.03774v2","created_at":"2026-05-18T00:40:23.946407+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.03774","created_at":"2026-05-18T00:40:23.946407+00:00"},{"alias_kind":"pith_short_12","alias_value":"NZOXR2RWNBUK","created_at":"2026-05-18T12:31:34.259226+00:00"},{"alias_kind":"pith_short_16","alias_value":"NZOXR2RWNBUK5B5D","created_at":"2026-05-18T12:31:34.259226+00:00"},{"alias_kind":"pith_short_8","alias_value":"NZOXR2RW","created_at":"2026-05-18T12:31:34.259226+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/NZOXR2RWNBUK5B5DO3IMGQT642","json":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642.json","graph_json":"https://pith.science/api/pith-number/NZOXR2RWNBUK5B5DO3IMGQT642/graph.json","events_json":"https://pith.science/api/pith-number/NZOXR2RWNBUK5B5DO3IMGQT642/events.json","paper":"https://pith.science/paper/NZOXR2RW"},"agent_actions":{"view_html":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642","download_json":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642.json","view_paper":"https://pith.science/paper/NZOXR2RW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.03774&json=true","fetch_graph":"https://pith.science/api/pith-number/NZOXR2RWNBUK5B5DO3IMGQT642/graph.json","fetch_events":"https://pith.science/api/pith-number/NZOXR2RWNBUK5B5DO3IMGQT642/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642/action/storage_attestation","attest_author":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642/action/author_attestation","sign_citation":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642/action/citation_signature","submit_replication":"https://pith.science/pith/NZOXR2RWNBUK5B5DO3IMGQT642/action/replication_record"}},"created_at":"2026-05-18T00:40:23.946407+00:00","updated_at":"2026-05-18T00:40:23.946407+00:00"}