{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:PASO56QIO5E7YVVQKLDGJX7JJ6","short_pith_number":"pith:PASO56QI","schema_version":"1.0","canonical_sha256":"7824eefa087749fc56b052c664dfe94f9bd01701564b1e84b0588a4df4504a3a","source":{"kind":"arxiv","id":"1103.3783","version":1},"attestation_state":"computed","paper":{"title":"Magnetic dynamics of single domain Ni nanoparticles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"E. Longo, E.R. Leite, F.C. Fonseca, G. F. Goya, N. L. V. Carre\\~no, R. F. Jardim, R. Muccillo","submitted_at":"2011-03-19T14:30:28Z","abstract_excerpt":"The dynamic magnetic properties of Ni nanoparticles diluted in an amorphous SiO2 matrix prepared from a modified sol-gel method have been studied by the frequency f dependence of the ac magnetic susceptibility \\c{hi}(T). For samples with similar average radii ~ 3-4 nm, an increase of the blocking temperature from TB ~ 20 to ~ 40 K was observed for Ni concentrations of ~ 1.5 and 5 wt.%, respectively, assigned to the effects of dipolar interactions. Both the in-phase \\c{hi}'(T) and the out-of-phase \\c{hi}\"(T) maxima follow the predictions of the thermally activated N\\'eel-Arrhenius model. The ef"},"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":"1103.3783","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-03-19T14:30:28Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"548dedc16fd4d5e1f58ecb3fec52806ca2af4505efdabff2d3e937f7354142ed","abstract_canon_sha256":"b00bd71e2eff40f2944cc66019205e329db3ac54aa04ccf734a4836cdb5fe42d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:26:22.324974Z","signature_b64":"JBeZoJ0g9UI7MRmaqGVaRyGubEJHWb8qs+G/rdTMUD4OI5xnFTzD27IWNit1ZjTHG9PTlkbkAD/ezbGeIj/oBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7824eefa087749fc56b052c664dfe94f9bd01701564b1e84b0588a4df4504a3a","last_reissued_at":"2026-05-18T04:26:22.324545Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:26:22.324545Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Magnetic dynamics of single domain Ni nanoparticles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"E. Longo, E.R. Leite, F.C. Fonseca, G. F. Goya, N. L. V. Carre\\~no, R. F. Jardim, R. Muccillo","submitted_at":"2011-03-19T14:30:28Z","abstract_excerpt":"The dynamic magnetic properties of Ni nanoparticles diluted in an amorphous SiO2 matrix prepared from a modified sol-gel method have been studied by the frequency f dependence of the ac magnetic susceptibility \\c{hi}(T). For samples with similar average radii ~ 3-4 nm, an increase of the blocking temperature from TB ~ 20 to ~ 40 K was observed for Ni concentrations of ~ 1.5 and 5 wt.%, respectively, assigned to the effects of dipolar interactions. Both the in-phase \\c{hi}'(T) and the out-of-phase \\c{hi}\"(T) maxima follow the predictions of the thermally activated N\\'eel-Arrhenius model. The ef"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3783","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":"1103.3783","created_at":"2026-05-18T04:26:22.324606+00:00"},{"alias_kind":"arxiv_version","alias_value":"1103.3783v1","created_at":"2026-05-18T04:26:22.324606+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.3783","created_at":"2026-05-18T04:26:22.324606+00:00"},{"alias_kind":"pith_short_12","alias_value":"PASO56QIO5E7","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_16","alias_value":"PASO56QIO5E7YVVQ","created_at":"2026-05-18T12:26:39.201973+00:00"},{"alias_kind":"pith_short_8","alias_value":"PASO56QI","created_at":"2026-05-18T12:26:39.201973+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/PASO56QIO5E7YVVQKLDGJX7JJ6","json":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6.json","graph_json":"https://pith.science/api/pith-number/PASO56QIO5E7YVVQKLDGJX7JJ6/graph.json","events_json":"https://pith.science/api/pith-number/PASO56QIO5E7YVVQKLDGJX7JJ6/events.json","paper":"https://pith.science/paper/PASO56QI"},"agent_actions":{"view_html":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6","download_json":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6.json","view_paper":"https://pith.science/paper/PASO56QI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1103.3783&json=true","fetch_graph":"https://pith.science/api/pith-number/PASO56QIO5E7YVVQKLDGJX7JJ6/graph.json","fetch_events":"https://pith.science/api/pith-number/PASO56QIO5E7YVVQKLDGJX7JJ6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6/action/storage_attestation","attest_author":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6/action/author_attestation","sign_citation":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6/action/citation_signature","submit_replication":"https://pith.science/pith/PASO56QIO5E7YVVQKLDGJX7JJ6/action/replication_record"}},"created_at":"2026-05-18T04:26:22.324606+00:00","updated_at":"2026-05-18T04:26:22.324606+00:00"}