{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:U5X5YJ3KL7WZLQ6DV5N4MXM3TZ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"eb06a27b8429b082df3921d7922a82e1cae1a2dd1d49af79fab2294fe7594714","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-05-04T18:57:22Z","title_canon_sha256":"b8cdd8f170d35d3e8b9c1b5be489e2553d47205e0fb686460e8db1625d6572ef"},"schema_version":"1.0","source":{"id":"1505.00753","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.00753","created_at":"2026-05-18T01:11:46Z"},{"alias_kind":"arxiv_version","alias_value":"1505.00753v1","created_at":"2026-05-18T01:11:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.00753","created_at":"2026-05-18T01:11:46Z"},{"alias_kind":"pith_short_12","alias_value":"U5X5YJ3KL7WZ","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"U5X5YJ3KL7WZLQ6D","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"U5X5YJ3K","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:d4728775384f20af34105d86858fc90cb191fd8d353840964e1e230bf3395268","target":"graph","created_at":"2026-05-18T01:11:46Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We present a study of the tetragonal to collapsed-tetragonal transition of CaFe2As2 using angle-resolved photoemission experiments and dynamical mean field theory-based electronic structure calculations. We observe that the collapsed-tetragonal phase exhibits reduced correlations and a higher coherence temperature due to the stronger Fe-As hybridization. Furthermore, a comparison of measured photoemission spectra and theoretical spectral functions shows that momentum-dependent corrections to the density functional band structure are essential for the description of low-energy quasiparticle dis","authors_text":"Ambroise van Roekeghem, Athena S. Sefat, Bayrammurad Saparov, Hong Ding, Lingkun Zeng, Pierre Richard, Shangfei Wu, Silke Biermann, Tian Qian, Xun Shi, Yoshiyuki Ohtsubo","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-05-04T18:57:22Z","title":"Tetragonal and collapsed-tetragonal phases of CaFe2As2 -- a view from angle-resolved photoemission and dynamical mean field theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.00753","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:91f442dbe42e72359f03ae61cb31204405b8fcfa18955f72543b102dea45a715","target":"record","created_at":"2026-05-18T01:11:46Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"eb06a27b8429b082df3921d7922a82e1cae1a2dd1d49af79fab2294fe7594714","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-05-04T18:57:22Z","title_canon_sha256":"b8cdd8f170d35d3e8b9c1b5be489e2553d47205e0fb686460e8db1625d6572ef"},"schema_version":"1.0","source":{"id":"1505.00753","kind":"arxiv","version":1}},"canonical_sha256":"a76fdc276a5fed95c3c3af5bc65d9b9e6afd4bae0d35e947b01e54a5fe156b66","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a76fdc276a5fed95c3c3af5bc65d9b9e6afd4bae0d35e947b01e54a5fe156b66","first_computed_at":"2026-05-18T01:11:46.892953Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:46.892953Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NLwwxXtaLu10R+xkyiwSRSN4uAw9TnN+nWb4qdJuoT4fWt3Fa1ZlDT6ec1ks1uaZLaiS01SNxVANyQg66mUdAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:46.893278Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.00753","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:91f442dbe42e72359f03ae61cb31204405b8fcfa18955f72543b102dea45a715","sha256:d4728775384f20af34105d86858fc90cb191fd8d353840964e1e230bf3395268"],"state_sha256":"90a62f337a400bb4313eaf42dfcb48c7d5b5835b11ec0ceca1ff27075c26d44e"}