{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:2E42CMK3PIT3ADW42NGTRMHEKX","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":"f6d3c1b205de2172f3c11e522c80fa4cd2500664e0d384f1a1e80852d2173d1e","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-04-28T06:52:12Z","title_canon_sha256":"9a4039a2b09ecd07e4b003008c4ac5b785edc93b111fd0b51d3c8e9284915ebd"},"schema_version":"1.0","source":{"id":"1604.08321","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.08321","created_at":"2026-05-18T01:12:29Z"},{"alias_kind":"arxiv_version","alias_value":"1604.08321v2","created_at":"2026-05-18T01:12:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.08321","created_at":"2026-05-18T01:12:29Z"},{"alias_kind":"pith_short_12","alias_value":"2E42CMK3PIT3","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_16","alias_value":"2E42CMK3PIT3ADW4","created_at":"2026-05-18T12:29:55Z"},{"alias_kind":"pith_short_8","alias_value":"2E42CMK3","created_at":"2026-05-18T12:29:55Z"}],"graph_snapshots":[{"event_id":"sha256:9eb74156dcd96dd8d3588244d12c1dd2cf20fe2546fe39ece0f018873677195d","target":"graph","created_at":"2026-05-18T01:12:29Z","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":"In Ca1-xRExFeAs2 (RE= rare earth), an antiferromagnetic (AFM) phase as well as a structural transition has been reported, even in the electron-overdoped regime. Here we investigated the temperature-dependent in-plane optical spectroscopy of overdoped Ca0.77Nd0.23FeAs2. Upon entering the AFM state, we found an abrupt reduction of low-frequency (500-2 000 cm-1) spectral weight in the optical conductivity. In sharp contrast to the parent compounds of 122 system, where spin-density-wave gaps have been clearly observed in the AFM state, a gap signature is absent in Ca0.77Nd0.23FeAs2. This may be a ","authors_text":"Bing Xu, Jinyun Liu, Run Yang, Wei Zhang, Xianggang Qiu, Yaomin Dai, Ziyang Qiu","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-04-28T06:52:12Z","title":"Optical study of the antiferromagnetic ordered state in electron-overdoped Ca0.77Nd0.23FeAs2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.08321","kind":"arxiv","version":2},"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":"sha256:5d9971cfe848d8acdc45882c38d1d2e1f3ee6cf23fc2e371d69c130d58adfe67","target":"record","created_at":"2026-05-18T01:12:29Z","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":"f6d3c1b205de2172f3c11e522c80fa4cd2500664e0d384f1a1e80852d2173d1e","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2016-04-28T06:52:12Z","title_canon_sha256":"9a4039a2b09ecd07e4b003008c4ac5b785edc93b111fd0b51d3c8e9284915ebd"},"schema_version":"1.0","source":{"id":"1604.08321","kind":"arxiv","version":2}},"canonical_sha256":"d139a1315b7a27b00edcd34d38b0e455dc51aa136d05a269582e49fce80cc7ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d139a1315b7a27b00edcd34d38b0e455dc51aa136d05a269582e49fce80cc7ff","first_computed_at":"2026-05-18T01:12:29.385018Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:29.385018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kxP60joDvSIozzIc5Ak9QM7k07xGDjP2NZebbbp4O7WZC3r8UKusmigRJbssmCGRB8XIs2s+zz22BWjJQAadBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:29.385346Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.08321","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d9971cfe848d8acdc45882c38d1d2e1f3ee6cf23fc2e371d69c130d58adfe67","sha256:9eb74156dcd96dd8d3588244d12c1dd2cf20fe2546fe39ece0f018873677195d"],"state_sha256":"f062e248443f1bd682bab4b36f3ab5fe553f6a404c38e81c3f038234ee59ba76"}