{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:NKOUJWCNHYZHYDAJMX7JTSDDRY","short_pith_number":"pith:NKOUJWCN","schema_version":"1.0","canonical_sha256":"6a9d44d84d3e327c0c0965fe99c8638e2bdc4d56e3c195f679aa4e744e86e859","source":{"kind":"arxiv","id":"1502.03351","version":1},"attestation_state":"computed","paper":{"title":"First-principles study of structurally modulated multiferroic CaMn$_7$O$_{12}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Feliciano Giustino, Kun Cao, Natasha Perks, Paolo G. Radaelli, Roger D. Johnson","submitted_at":"2015-02-11T16:06:44Z","abstract_excerpt":"We study the electronic and magnetic structures of multiferroic CaMn$_7$O$_{12}$ by first-principle calculations, based on the experimentally determined modulated crystal structure. We confirm the presence of a 3$d$ orbital modulation of the Mn2 (Mn$^{3+}$) sites, previously inferred from the Jahn-Teller crystal distortions. Our results indicate that in the multiferroic phase the magnetic structure of the Mn3 (Mn$^{4+}$) sites is anharmonically modulated via orbitally-mediated coupling with the structural modulation, and that the Dzyaloshinskii-Moriya and exchange striction mechanisms contribu"},"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":"1502.03351","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-02-11T16:06:44Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"ea93cb4362aaf9c327917fcbb7a4b74bc7150514d4573ff7e7332837eec9837f","abstract_canon_sha256":"ee0e25931e2e3a4c8aaa3ac7f2045bbf9d0604798e7240461c6c10cd721c384b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:03.780455Z","signature_b64":"SOTggN2Za3Ad/HB+doLKyObuk0AXErnTMkCpk1f64o4OnysWfGmNemZ8L1QuNRTJfq4nVyJTrqCtslzW4U75Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6a9d44d84d3e327c0c0965fe99c8638e2bdc4d56e3c195f679aa4e744e86e859","last_reissued_at":"2026-05-18T01:41:03.779750Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:03.779750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First-principles study of structurally modulated multiferroic CaMn$_7$O$_{12}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Feliciano Giustino, Kun Cao, Natasha Perks, Paolo G. Radaelli, Roger D. Johnson","submitted_at":"2015-02-11T16:06:44Z","abstract_excerpt":"We study the electronic and magnetic structures of multiferroic CaMn$_7$O$_{12}$ by first-principle calculations, based on the experimentally determined modulated crystal structure. We confirm the presence of a 3$d$ orbital modulation of the Mn2 (Mn$^{3+}$) sites, previously inferred from the Jahn-Teller crystal distortions. Our results indicate that in the multiferroic phase the magnetic structure of the Mn3 (Mn$^{4+}$) sites is anharmonically modulated via orbitally-mediated coupling with the structural modulation, and that the Dzyaloshinskii-Moriya and exchange striction mechanisms contribu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.03351","kind":"arxiv","version":1},"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":"1502.03351","created_at":"2026-05-18T01:41:03.779869+00:00"},{"alias_kind":"arxiv_version","alias_value":"1502.03351v1","created_at":"2026-05-18T01:41:03.779869+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.03351","created_at":"2026-05-18T01:41:03.779869+00:00"},{"alias_kind":"pith_short_12","alias_value":"NKOUJWCNHYZH","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_16","alias_value":"NKOUJWCNHYZHYDAJ","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_8","alias_value":"NKOUJWCN","created_at":"2026-05-18T12:29:32.376354+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/NKOUJWCNHYZHYDAJMX7JTSDDRY","json":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY.json","graph_json":"https://pith.science/api/pith-number/NKOUJWCNHYZHYDAJMX7JTSDDRY/graph.json","events_json":"https://pith.science/api/pith-number/NKOUJWCNHYZHYDAJMX7JTSDDRY/events.json","paper":"https://pith.science/paper/NKOUJWCN"},"agent_actions":{"view_html":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY","download_json":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY.json","view_paper":"https://pith.science/paper/NKOUJWCN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1502.03351&json=true","fetch_graph":"https://pith.science/api/pith-number/NKOUJWCNHYZHYDAJMX7JTSDDRY/graph.json","fetch_events":"https://pith.science/api/pith-number/NKOUJWCNHYZHYDAJMX7JTSDDRY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY/action/storage_attestation","attest_author":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY/action/author_attestation","sign_citation":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY/action/citation_signature","submit_replication":"https://pith.science/pith/NKOUJWCNHYZHYDAJMX7JTSDDRY/action/replication_record"}},"created_at":"2026-05-18T01:41:03.779869+00:00","updated_at":"2026-05-18T01:41:03.779869+00:00"}