{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2LPVRE4XKTMCA7JQWUNTKP4ENC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"03db59bbab127afc4a48eb470b552e570b7d842c2a534ea873247c3dfcf9b2cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-01-03T16:19:35Z","title_canon_sha256":"360d1037c231a3fa96fc356d3c867f0d2f1651a2dcf2e3dee2149ed22b5f5866"},"schema_version":"1.0","source":{"id":"1801.01065","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.01065","created_at":"2026-05-18T00:26:47Z"},{"alias_kind":"arxiv_version","alias_value":"1801.01065v1","created_at":"2026-05-18T00:26:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.01065","created_at":"2026-05-18T00:26:47Z"},{"alias_kind":"pith_short_12","alias_value":"2LPVRE4XKTMC","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2LPVRE4XKTMCA7JQ","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2LPVRE4X","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:2a5feb4eff0d62a1111008875ed52152269d2f7b8cd47b70887c54f0cfaeeb08","target":"graph","created_at":"2026-05-18T00:26:47Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"A spin-torque ferromagnetic resonance study is performed in epitaxial $\\mathrm{Fe / Ir_{15}Mn_{85}}$ bilayers with different Fe thicknesses. We measure a negative spin-Hall angle of a few percent in the antiferromagnetic IrMn in contrast to previously reported positive values. A large spin-orbit field with Rashba symmetry opposing the Oersted field is also present. Magnitudes of measured spin-orbit torques depend on the crystallographic direction of current and are correlated with the exchange bias direction set during growth. We suggest that the uncompensated moments at the Fe / IrMn interfac","authors_text":"A. J. Ferguson, A. W. Rushforth, M. Wang, P. Wadley, V. Tshitoyan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-01-03T16:19:35Z","title":"Negative spin-Hall angle and anisotropic spin-orbit torques in epitaxial IrMn"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.01065","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:0ae9d25df105642ca128865d9f9dd28b87f810f5338b7e0c52c10b0a7ba8b9f1","target":"record","created_at":"2026-05-18T00:26:47Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"03db59bbab127afc4a48eb470b552e570b7d842c2a534ea873247c3dfcf9b2cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-01-03T16:19:35Z","title_canon_sha256":"360d1037c231a3fa96fc356d3c867f0d2f1651a2dcf2e3dee2149ed22b5f5866"},"schema_version":"1.0","source":{"id":"1801.01065","kind":"arxiv","version":1}},"canonical_sha256":"d2df58939754d8207d30b51b353f8468953a204e3dfb319c1823d9ce6e82677a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2df58939754d8207d30b51b353f8468953a204e3dfb319c1823d9ce6e82677a","first_computed_at":"2026-05-18T00:26:47.924106Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:47.924106Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aBvYrIkXYF4QAMKM6D06Dc5MBt+fFJqvwKBRVV34vVjKRHoYbPElHmj7bF6wHQj5t4ZqPDq1dame9+CA4dYxAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:47.924861Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.01065","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ae9d25df105642ca128865d9f9dd28b87f810f5338b7e0c52c10b0a7ba8b9f1","sha256:2a5feb4eff0d62a1111008875ed52152269d2f7b8cd47b70887c54f0cfaeeb08"],"state_sha256":"a81ee84c7b206bbc785e42df7b10a52d509e4848f3ac7dcc370830c404d4228d"}