{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:SWHIVWHKN6EV43DN2P2EAV5EJA","short_pith_number":"pith:SWHIVWHK","schema_version":"1.0","canonical_sha256":"958e8ad8ea6f895e6c6dd3f44057a448045d75fbe70fa95b4e93762cd5a43b22","source":{"kind":"arxiv","id":"1201.0826","version":6},"attestation_state":"computed","paper":{"title":"Ferroelectricity at the N\\'eel Temperature of Chromium in Rare-earth Orthochromites: Interplay of Rare-earth and Cr Magnetism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. K. Zvezdin, A. Sundaresan, B. Rajeswaran, C. N. R. Rao, D. I. Khomskii","submitted_at":"2012-01-04T05:46:21Z","abstract_excerpt":"We report ferroelectricity with fairly large spontaneous polarization (P ~ 0.2 - 0.8 \\muC/cm2) below the N\\'eel temperature of chromium (TNCr) in weakly ferromagnetic rare-earth orthochromites, RCrO3 (R=rare-earth) only when the rare-earth ion is magnetic. Intriguingly, the ferroelectricity in ErCrO3 (TC = 133 K) disappears at a spin-reorientation (Morin) transition (TSR ~ 22 K) below which the weak ferromagnetism associated with the Cr-sublattice also disappears, demonstrating the crucial role of weak ferromagnetism in inducing ferroelectricity. Further, the ferroelectric polarization (P) cou"},"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":"1201.0826","kind":"arxiv","version":6},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-01-04T05:46:21Z","cross_cats_sorted":[],"title_canon_sha256":"a34caf0d8614627069c8af607fc522f72624d9fa658b5fa1bad5d21b4a51274b","abstract_canon_sha256":"e60a8274fb3dc2f1d2ac1423e5742657826ba94c75a1acbbb54a7bc55ad74bdb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:38:14.319163Z","signature_b64":"F0G67GcB/w7kxIp/lUjFGZkbcvBwb6oyi95KpSYkisrQBVR4MEfOHC3HvmvUW/8Aq3xQJPZgsooD9oY2+rVEBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"958e8ad8ea6f895e6c6dd3f44057a448045d75fbe70fa95b4e93762cd5a43b22","last_reissued_at":"2026-05-18T03:38:14.318660Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:38:14.318660Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Ferroelectricity at the N\\'eel Temperature of Chromium in Rare-earth Orthochromites: Interplay of Rare-earth and Cr Magnetism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. K. Zvezdin, A. Sundaresan, B. Rajeswaran, C. N. R. Rao, D. I. Khomskii","submitted_at":"2012-01-04T05:46:21Z","abstract_excerpt":"We report ferroelectricity with fairly large spontaneous polarization (P ~ 0.2 - 0.8 \\muC/cm2) below the N\\'eel temperature of chromium (TNCr) in weakly ferromagnetic rare-earth orthochromites, RCrO3 (R=rare-earth) only when the rare-earth ion is magnetic. Intriguingly, the ferroelectricity in ErCrO3 (TC = 133 K) disappears at a spin-reorientation (Morin) transition (TSR ~ 22 K) below which the weak ferromagnetism associated with the Cr-sublattice also disappears, demonstrating the crucial role of weak ferromagnetism in inducing ferroelectricity. Further, the ferroelectric polarization (P) cou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0826","kind":"arxiv","version":6},"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":"1201.0826","created_at":"2026-05-18T03:38:14.318733+00:00"},{"alias_kind":"arxiv_version","alias_value":"1201.0826v6","created_at":"2026-05-18T03:38:14.318733+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0826","created_at":"2026-05-18T03:38:14.318733+00:00"},{"alias_kind":"pith_short_12","alias_value":"SWHIVWHKN6EV","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_16","alias_value":"SWHIVWHKN6EV43DN","created_at":"2026-05-18T12:27:23.164592+00:00"},{"alias_kind":"pith_short_8","alias_value":"SWHIVWHK","created_at":"2026-05-18T12:27:23.164592+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/SWHIVWHKN6EV43DN2P2EAV5EJA","json":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA.json","graph_json":"https://pith.science/api/pith-number/SWHIVWHKN6EV43DN2P2EAV5EJA/graph.json","events_json":"https://pith.science/api/pith-number/SWHIVWHKN6EV43DN2P2EAV5EJA/events.json","paper":"https://pith.science/paper/SWHIVWHK"},"agent_actions":{"view_html":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA","download_json":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA.json","view_paper":"https://pith.science/paper/SWHIVWHK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1201.0826&json=true","fetch_graph":"https://pith.science/api/pith-number/SWHIVWHKN6EV43DN2P2EAV5EJA/graph.json","fetch_events":"https://pith.science/api/pith-number/SWHIVWHKN6EV43DN2P2EAV5EJA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA/action/storage_attestation","attest_author":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA/action/author_attestation","sign_citation":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA/action/citation_signature","submit_replication":"https://pith.science/pith/SWHIVWHKN6EV43DN2P2EAV5EJA/action/replication_record"}},"created_at":"2026-05-18T03:38:14.318733+00:00","updated_at":"2026-05-18T03:38:14.318733+00:00"}