{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:P4FAY32JTHC7GRV36ML6Y6V2JK","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":"0b0f04d0905ebc78a84ca4e0fea4839f655f66d471f5dba9db60c26cad66438d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-09T01:52:48Z","title_canon_sha256":"eae7ba9d3398c6ae80fa0dc82a86bdb87dae6ca1ab23b1f224f817c8186f6a8f"},"schema_version":"1.0","source":{"id":"1801.02747","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.02747","created_at":"2026-05-18T00:13:45Z"},{"alias_kind":"arxiv_version","alias_value":"1801.02747v1","created_at":"2026-05-18T00:13:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.02747","created_at":"2026-05-18T00:13:45Z"},{"alias_kind":"pith_short_12","alias_value":"P4FAY32JTHC7","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"P4FAY32JTHC7GRV3","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"P4FAY32J","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:721b2f9a06884c2d21aba84985518d0abf0ce6be473baa31fb9f4528bc681f11","target":"graph","created_at":"2026-05-18T00:13:45Z","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":"We investigate the observation of negative spin Hall magnetoresistance (SMR) in antiferromagnetic Cr2O3/Ta bilayers at low temperature. The sign of the SMR signals is changed from positive to negative monotonously from 300 K to 50 K. The change of the signs for SMR is related with the competitions between the surface ferromagnetism and bulky antiferromagnetic of Cr2O3. The surface magnetizations of Cr2O3 (0001) is considered to be dominated at higher temperature, while the bulky antiferromagnetics gets to be robust with decreasing of temperature. The slopes of the abnormal Hall curves coincide","authors_text":"J. K. Chen, J. Miao, K. K. Meng, X. G. Xu, Y. Ji, Y. Jiang, Y. M. Zhu, Y. Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-09T01:52:48Z","title":"Negative spin Hall magnetoresistance in antiferromagnetic Cr2O3/Ta bilayer at low temperature region"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.02747","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":"sha256:9aeaef3692b0437588baafaae7a17f37bdef232bb72804dbfc7db7744940a8c1","target":"record","created_at":"2026-05-18T00:13:45Z","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":"0b0f04d0905ebc78a84ca4e0fea4839f655f66d471f5dba9db60c26cad66438d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-01-09T01:52:48Z","title_canon_sha256":"eae7ba9d3398c6ae80fa0dc82a86bdb87dae6ca1ab23b1f224f817c8186f6a8f"},"schema_version":"1.0","source":{"id":"1801.02747","kind":"arxiv","version":1}},"canonical_sha256":"7f0a0c6f4999c5f346bbf317ec7aba4aa359e13edf863799d58536ae5c49658d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f0a0c6f4999c5f346bbf317ec7aba4aa359e13edf863799d58536ae5c49658d","first_computed_at":"2026-05-18T00:13:45.114592Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:13:45.114592Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o25oLKhHts13czD07i7yGq8XLfdyQegLSkK9AnLu9WGeHT3+1GoYDn2Pg1VPH+Vcr2fLI5H/uudlzkMQq73UBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:13:45.115354Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.02747","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9aeaef3692b0437588baafaae7a17f37bdef232bb72804dbfc7db7744940a8c1","sha256:721b2f9a06884c2d21aba84985518d0abf0ce6be473baa31fb9f4528bc681f11"],"state_sha256":"ed752ae41e72f357ce548ef4aa6a7e947395f5045c66ba4a665742eb3ee18a50"}