{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:LPI5VE5DVJQTV5QDZKO2SURJIQ","short_pith_number":"pith:LPI5VE5D","schema_version":"1.0","canonical_sha256":"5bd1da93a3aa613af603ca9da952294431b74cee3d664ba98b897648ecb72ce8","source":{"kind":"arxiv","id":"1111.3749","version":3},"attestation_state":"computed","paper":{"title":"Metamagnetic Behavior and Kondo Breakdown in Heavy-Fermion CeFePO","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"H. Hosono, H. Ikeda, K. Ishida, M. Hirano, S. Kitagawa, T. Hattori, Y. Kamihara, Y. Nakai","submitted_at":"2011-11-16T10:09:11Z","abstract_excerpt":"We report that nonmagnetic heavy-fermion (HF) iron oxypnictide CeFePO with two-dimensional XY-type anisotropy shows a metamagnetic behavior at the metamagnetic field H_M \\simeq 4 T perpendicular to the c-axis and that a critical behavior is observed around H_M. Although the magnetic character is entirely different from that in other Ce-based HF metamagnets, H_M in these metamagnets is linearly proportional to the inverse of the effective mass, or to the temperature where the susceptibility shows a peak. This finding suggests that H_M is a magnetic field breaking the local Kondo singlet, and th"},"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":"1111.3749","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-11-16T10:09:11Z","cross_cats_sorted":[],"title_canon_sha256":"2b85fb5be0e85b8e4684bb0e7b4b4dad4e5bc5fc63d6ce17d3c3a5068138bf68","abstract_canon_sha256":"66ac3cfc9b01c0611ef1c7dc90545341039fc1e1796678d385274179cd837567"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:04:32.965670Z","signature_b64":"mNx4747FgsaUKn46FDs91/Auf73khOCtX5OSIjEn4+lv2Xa578CJrwkUL/hOSxk1qUfIf6ONviBy5ImnkX3nDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5bd1da93a3aa613af603ca9da952294431b74cee3d664ba98b897648ecb72ce8","last_reissued_at":"2026-05-18T04:04:32.964891Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:04:32.964891Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Metamagnetic Behavior and Kondo Breakdown in Heavy-Fermion CeFePO","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"H. Hosono, H. Ikeda, K. Ishida, M. Hirano, S. Kitagawa, T. Hattori, Y. Kamihara, Y. Nakai","submitted_at":"2011-11-16T10:09:11Z","abstract_excerpt":"We report that nonmagnetic heavy-fermion (HF) iron oxypnictide CeFePO with two-dimensional XY-type anisotropy shows a metamagnetic behavior at the metamagnetic field H_M \\simeq 4 T perpendicular to the c-axis and that a critical behavior is observed around H_M. Although the magnetic character is entirely different from that in other Ce-based HF metamagnets, H_M in these metamagnets is linearly proportional to the inverse of the effective mass, or to the temperature where the susceptibility shows a peak. This finding suggests that H_M is a magnetic field breaking the local Kondo singlet, and th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.3749","kind":"arxiv","version":3},"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":"1111.3749","created_at":"2026-05-18T04:04:32.965022+00:00"},{"alias_kind":"arxiv_version","alias_value":"1111.3749v3","created_at":"2026-05-18T04:04:32.965022+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.3749","created_at":"2026-05-18T04:04:32.965022+00:00"},{"alias_kind":"pith_short_12","alias_value":"LPI5VE5DVJQT","created_at":"2026-05-18T12:26:34.985390+00:00"},{"alias_kind":"pith_short_16","alias_value":"LPI5VE5DVJQTV5QD","created_at":"2026-05-18T12:26:34.985390+00:00"},{"alias_kind":"pith_short_8","alias_value":"LPI5VE5D","created_at":"2026-05-18T12:26:34.985390+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/LPI5VE5DVJQTV5QDZKO2SURJIQ","json":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ.json","graph_json":"https://pith.science/api/pith-number/LPI5VE5DVJQTV5QDZKO2SURJIQ/graph.json","events_json":"https://pith.science/api/pith-number/LPI5VE5DVJQTV5QDZKO2SURJIQ/events.json","paper":"https://pith.science/paper/LPI5VE5D"},"agent_actions":{"view_html":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ","download_json":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ.json","view_paper":"https://pith.science/paper/LPI5VE5D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1111.3749&json=true","fetch_graph":"https://pith.science/api/pith-number/LPI5VE5DVJQTV5QDZKO2SURJIQ/graph.json","fetch_events":"https://pith.science/api/pith-number/LPI5VE5DVJQTV5QDZKO2SURJIQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ/action/storage_attestation","attest_author":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ/action/author_attestation","sign_citation":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ/action/citation_signature","submit_replication":"https://pith.science/pith/LPI5VE5DVJQTV5QDZKO2SURJIQ/action/replication_record"}},"created_at":"2026-05-18T04:04:32.965022+00:00","updated_at":"2026-05-18T04:04:32.965022+00:00"}