{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:6IIQPLHJDQJYHIFYGCLLHIMCM5","short_pith_number":"pith:6IIQPLHJ","schema_version":"1.0","canonical_sha256":"f21107ace91c1383a0b83096b3a182676fedb7929664263c073059e5cf5c07af","source":{"kind":"arxiv","id":"cond-mat/0504532","version":1},"attestation_state":"computed","paper":{"title":"Full Bulk Spin Polarization and Intrinsic Tunnel Barriers at the Surface of Layered Manganites","license":"","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Elvira Badica, H. Zheng, J.F. Mitchell, J. Kavich, J.W. Freeland, K.E. Gray, L. Ozyuzer, P. Berghuis","submitted_at":"2005-04-20T21:29:02Z","abstract_excerpt":"Transmission of information using the spin of the electron as well as its charge requires a high degree of spin polarization at surfaces. At surfaces however this degree of polarization can be quenched by competing interactions. Using a combination of surface sensitive x-ray and tunneling probes, we show for the quasi-two-dimensional bilayer manganites that the outermost Mn-O bilayer, alone, is affected: it is a 1-nm thick insulator that exhibits no long-range ferromagnetic order while the next bilayer displays the full spin polarization of the bulk. Such an abrupt localization of the surface "},"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":"cond-mat/0504532","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2005-04-20T21:29:02Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"c92a5d2f9d847313afbfc0e6ac2fa0d74a167a8f2488d9672642c41e140830b8","abstract_canon_sha256":"d3eb246b522cde40e4606f1cd53e0e9926ee92e4b2975141ec09b7030d02ebaf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:39:53.255300Z","signature_b64":"4HMi+Gu77f8GJf1YNFbuE+44kiWzXKz0fpix7OsGwgV/CZ4FAN2Dt3QK5IetgiCPhOKA1NSZkOQrnce5tssCDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f21107ace91c1383a0b83096b3a182676fedb7929664263c073059e5cf5c07af","last_reissued_at":"2026-05-18T01:39:53.254801Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:39:53.254801Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Full Bulk Spin Polarization and Intrinsic Tunnel Barriers at the Surface of Layered Manganites","license":"","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"Elvira Badica, H. Zheng, J.F. Mitchell, J. Kavich, J.W. Freeland, K.E. Gray, L. Ozyuzer, P. Berghuis","submitted_at":"2005-04-20T21:29:02Z","abstract_excerpt":"Transmission of information using the spin of the electron as well as its charge requires a high degree of spin polarization at surfaces. At surfaces however this degree of polarization can be quenched by competing interactions. Using a combination of surface sensitive x-ray and tunneling probes, we show for the quasi-two-dimensional bilayer manganites that the outermost Mn-O bilayer, alone, is affected: it is a 1-nm thick insulator that exhibits no long-range ferromagnetic order while the next bilayer displays the full spin polarization of the bulk. Such an abrupt localization of the surface "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0504532","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":"cond-mat/0504532","created_at":"2026-05-18T01:39:53.254876+00:00"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0504532v1","created_at":"2026-05-18T01:39:53.254876+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0504532","created_at":"2026-05-18T01:39:53.254876+00:00"},{"alias_kind":"pith_short_12","alias_value":"6IIQPLHJDQJY","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_16","alias_value":"6IIQPLHJDQJYHIFY","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_8","alias_value":"6IIQPLHJ","created_at":"2026-05-18T12:25:53.335082+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/6IIQPLHJDQJYHIFYGCLLHIMCM5","json":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5.json","graph_json":"https://pith.science/api/pith-number/6IIQPLHJDQJYHIFYGCLLHIMCM5/graph.json","events_json":"https://pith.science/api/pith-number/6IIQPLHJDQJYHIFYGCLLHIMCM5/events.json","paper":"https://pith.science/paper/6IIQPLHJ"},"agent_actions":{"view_html":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5","download_json":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5.json","view_paper":"https://pith.science/paper/6IIQPLHJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=cond-mat/0504532&json=true","fetch_graph":"https://pith.science/api/pith-number/6IIQPLHJDQJYHIFYGCLLHIMCM5/graph.json","fetch_events":"https://pith.science/api/pith-number/6IIQPLHJDQJYHIFYGCLLHIMCM5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5/action/storage_attestation","attest_author":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5/action/author_attestation","sign_citation":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5/action/citation_signature","submit_replication":"https://pith.science/pith/6IIQPLHJDQJYHIFYGCLLHIMCM5/action/replication_record"}},"created_at":"2026-05-18T01:39:53.254876+00:00","updated_at":"2026-05-18T01:39:53.254876+00:00"}