{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:I42ROE3ZAVVW6SIP2EELLAW5NM","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":"9907994173d5b9b02f4db1bcd74a983345b7c6efefefa7a4c5a7dd0ce652a16b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-05-11T13:27:19Z","title_canon_sha256":"ab6b566813fd64d17325355fba3d05dd9bd01946045e951071db302d754d159e"},"schema_version":"1.0","source":{"id":"1205.2518","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.2518","created_at":"2026-05-18T01:57:33Z"},{"alias_kind":"arxiv_version","alias_value":"1205.2518v1","created_at":"2026-05-18T01:57:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.2518","created_at":"2026-05-18T01:57:33Z"},{"alias_kind":"pith_short_12","alias_value":"I42ROE3ZAVVW","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"I42ROE3ZAVVW6SIP","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"I42ROE3Z","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:23ea9d8c9fe7481a95cc1fd0e4bbd21443103d2c7ffefc23b0ff0f1c5d1e0ca7","target":"graph","created_at":"2026-05-18T01:57:33Z","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 investigate the effect of external pressure on magnetic order in undoped LnFeAsO (Ln = La, Ce, Pr, La) by using muon-spin relaxation measurements and ab-initio calculations. Both magnetic transition temperature $T_m$ and Fe magnetic moment decrease with external pressure. The effect is observed to be lanthanide dependent with the strongest response for Ln = La and the weakest for Ln = Sm. The trend is qualitatively in agreement with our DFT calculations. The same calculations allow us to assign a value of 0.68(2) $\\mu_B$ to the Fe moment, obtained from an accurate determination of the muon ","authors_text":"Alex Amato, Andrea Palenzona, Giacomo Prando, Hubertus Luetkens, Marcello Mazzani, Markus Bendele, Matteo Tropeano, Maurizio Vignolo, Pietro Bonf\\`a, Pietro Carretta, Roberto De Renzi, Rustem Khasanov, Samuele Sanna","cross_cats":["cond-mat.str-el"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-05-11T13:27:19Z","title":"Effect of external pressure on the magnetic properties of LnFeAsO (Ln = La, Ce, Pr, Sm)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.2518","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":"sha256:843984a35c92c0ef80e3fcfcabd8e095264948e4729ab2e1b007803f22ecc91a","target":"record","created_at":"2026-05-18T01:57:33Z","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":"9907994173d5b9b02f4db1bcd74a983345b7c6efefefa7a4c5a7dd0ce652a16b","cross_cats_sorted":["cond-mat.str-el"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-05-11T13:27:19Z","title_canon_sha256":"ab6b566813fd64d17325355fba3d05dd9bd01946045e951071db302d754d159e"},"schema_version":"1.0","source":{"id":"1205.2518","kind":"arxiv","version":1}},"canonical_sha256":"4735171379056b6f490fd108b582dd6b332c3f72f5fa3baba273456f6d869ec4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4735171379056b6f490fd108b582dd6b332c3f72f5fa3baba273456f6d869ec4","first_computed_at":"2026-05-18T01:57:33.345427Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:33.345427Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MwGvwhQ45IWbk7LBgKpj++WJQ5b3iQyiBhnGVtJBNkLrhhdLsAmNVPSBloUNMizk0gmbF4yzJRs7NQ17FHw2Dg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:33.346071Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.2518","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:843984a35c92c0ef80e3fcfcabd8e095264948e4729ab2e1b007803f22ecc91a","sha256:23ea9d8c9fe7481a95cc1fd0e4bbd21443103d2c7ffefc23b0ff0f1c5d1e0ca7"],"state_sha256":"22616cf20e20c81e75c932afd185c9b265931459b1a508f06e2f77fae505e6cf"}