{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:WKYTMAZ77RNQWEBSWLHHKX2G7U","short_pith_number":"pith:WKYTMAZ7","schema_version":"1.0","canonical_sha256":"b2b136033ffc5b0b1032b2ce755f46fd394e5aa58786ce70245d4daa0b770c40","source":{"kind":"arxiv","id":"1304.6515","version":3},"attestation_state":"computed","paper":{"title":"Spin Resolution and Evidence for Superexchange on NiO(001) observed by Force Microscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Florian Pielmeier, Franz J. Giessibl","submitted_at":"2013-04-24T09:05:55Z","abstract_excerpt":"The spin order of the nickel oxide (001) surface is resolved, employing non-contact atomic force microscopy at 4.4 K using bulk Fe- and SmCo-tips mounted on a qPlus sensor that oscillates at sub-50 pm amplitudes. The spin-dependent signal is hardly detectable with Fe-tips. In contrast, SmCo-tips yield a height contrast of 1.35 pm for Ni ions with opposite spins. SmCo tips even show a small height contrast on the O atoms of 0.5 pm within the 2x1 spin unit cell, pointing to the observation of superexchange. We attribute this to the increased magnetocrystalline anisotropy energy of SmCo, which st"},"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":"1304.6515","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-24T09:05:55Z","cross_cats_sorted":[],"title_canon_sha256":"6e17c2ae40bff5ce2cdd96ceabbb756fb0765e352766928dfcbc0a0f3fea2d2a","abstract_canon_sha256":"24ef4956d1041a28bc06c985299718f8f31b26adb866457a49ca5349f350eff9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:19:45.333384Z","signature_b64":"wXFb4FzPhl6s/5Y/E0aW1zmG/8MK9XeupLUzqGDw58uYNQcaJauiADYpnDPMbEyZVYk+VNOkio8/pHHWVWP3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b2b136033ffc5b0b1032b2ce755f46fd394e5aa58786ce70245d4daa0b770c40","last_reissued_at":"2026-05-18T03:19:45.332845Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:19:45.332845Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spin Resolution and Evidence for Superexchange on NiO(001) observed by Force Microscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Florian Pielmeier, Franz J. Giessibl","submitted_at":"2013-04-24T09:05:55Z","abstract_excerpt":"The spin order of the nickel oxide (001) surface is resolved, employing non-contact atomic force microscopy at 4.4 K using bulk Fe- and SmCo-tips mounted on a qPlus sensor that oscillates at sub-50 pm amplitudes. The spin-dependent signal is hardly detectable with Fe-tips. In contrast, SmCo-tips yield a height contrast of 1.35 pm for Ni ions with opposite spins. SmCo tips even show a small height contrast on the O atoms of 0.5 pm within the 2x1 spin unit cell, pointing to the observation of superexchange. We attribute this to the increased magnetocrystalline anisotropy energy of SmCo, which st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.6515","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":"1304.6515","created_at":"2026-05-18T03:19:45.332932+00:00"},{"alias_kind":"arxiv_version","alias_value":"1304.6515v3","created_at":"2026-05-18T03:19:45.332932+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.6515","created_at":"2026-05-18T03:19:45.332932+00:00"},{"alias_kind":"pith_short_12","alias_value":"WKYTMAZ77RNQ","created_at":"2026-05-18T12:28:04.890932+00:00"},{"alias_kind":"pith_short_16","alias_value":"WKYTMAZ77RNQWEBS","created_at":"2026-05-18T12:28:04.890932+00:00"},{"alias_kind":"pith_short_8","alias_value":"WKYTMAZ7","created_at":"2026-05-18T12:28:04.890932+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/WKYTMAZ77RNQWEBSWLHHKX2G7U","json":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U.json","graph_json":"https://pith.science/api/pith-number/WKYTMAZ77RNQWEBSWLHHKX2G7U/graph.json","events_json":"https://pith.science/api/pith-number/WKYTMAZ77RNQWEBSWLHHKX2G7U/events.json","paper":"https://pith.science/paper/WKYTMAZ7"},"agent_actions":{"view_html":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U","download_json":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U.json","view_paper":"https://pith.science/paper/WKYTMAZ7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1304.6515&json=true","fetch_graph":"https://pith.science/api/pith-number/WKYTMAZ77RNQWEBSWLHHKX2G7U/graph.json","fetch_events":"https://pith.science/api/pith-number/WKYTMAZ77RNQWEBSWLHHKX2G7U/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U/action/storage_attestation","attest_author":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U/action/author_attestation","sign_citation":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U/action/citation_signature","submit_replication":"https://pith.science/pith/WKYTMAZ77RNQWEBSWLHHKX2G7U/action/replication_record"}},"created_at":"2026-05-18T03:19:45.332932+00:00","updated_at":"2026-05-18T03:19:45.332932+00:00"}