{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:6KICNIIZQQVHP5N32DX4LQLJFK","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":"c113f43894660cbfb0d093f792125c8745e6a3d6d3d5336b400bd7df9b711d6f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-04-21T08:15:33Z","title_canon_sha256":"a76063aecd6dade0e91febfe064d35a3e8f3cf4c0009736ed76211cf86ed46ff"},"schema_version":"1.0","source":{"id":"2204.09950","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2204.09950","created_at":"2026-07-05T04:16:45Z"},{"alias_kind":"arxiv_version","alias_value":"2204.09950v1","created_at":"2026-07-05T04:16:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2204.09950","created_at":"2026-07-05T04:16:45Z"},{"alias_kind":"pith_short_12","alias_value":"6KICNIIZQQVH","created_at":"2026-07-05T04:16:45Z"},{"alias_kind":"pith_short_16","alias_value":"6KICNIIZQQVHP5N3","created_at":"2026-07-05T04:16:45Z"},{"alias_kind":"pith_short_8","alias_value":"6KICNIIZ","created_at":"2026-07-05T04:16:45Z"}],"graph_snapshots":[{"event_id":"sha256:9d51e7f444b07b166ea6b06a63d783dad04e2c63bdf3e8717ae62082de1efff9","target":"graph","created_at":"2026-07-05T04:16:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2204.09950/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The layered van der Waals (vdW) material MnBi$_2$Te$_4$ is an intrinsic magnetic topological insulator with various topological phases such as quantum anomalous Hall effect (QAHE) and axion states. However, both the zero-field and high-temperature QAHE are not easy to realize. It is theoretically proposed that the exchange bias can be introduced in the MnBi2Te4/ferromagnetic (FM) insulator heterostructures and thus opens the surface states gap, making it easier to realize the zero-field or high-temperature QAHE. Here we report the electrically tunable exchange bias in the van der Waals MnBi$_2","authors_text":"Ben-Chuan Lin, Dapeng Yu, Guang-Yu Zhu, Hao-Nan Cui, Jian-Kun Wang, Jing-Di Lu, Jing-Zhi Fang, Jinxing Zhang, Mao-Sen Qin, Shou-Guo Wang, Shuo Wang, Xin-Jie Liu, Yan-Fei Wu, Ze-Nan Wu, Zhi-Min Liao, Zhongming Wei","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-04-21T08:15:33Z","title":"Exchange bias in van der Waals MnBi$_2$Te$_4$/Cr$_2$Ge$_2$Te$_6$ heterostructure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2204.09950","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":"sha256:7ce150b8065016ed434ce37e39304b983aa30786e4430e26c9fba454e73d3f54","target":"record","created_at":"2026-07-05T04:16:45Z","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":"c113f43894660cbfb0d093f792125c8745e6a3d6d3d5336b400bd7df9b711d6f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-04-21T08:15:33Z","title_canon_sha256":"a76063aecd6dade0e91febfe064d35a3e8f3cf4c0009736ed76211cf86ed46ff"},"schema_version":"1.0","source":{"id":"2204.09950","kind":"arxiv","version":1}},"canonical_sha256":"f29026a119842a77f5bbd0efc5c1692a8e15f59fb1330c8d3a04a98fe09d4a5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f29026a119842a77f5bbd0efc5c1692a8e15f59fb1330c8d3a04a98fe09d4a5d","first_computed_at":"2026-07-05T04:16:45.001406Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:16:45.001406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YEfdHmkJZCzBJK+vCbo0nhKMuGy3iODcMmXbqtaWVR/edEsp+bohzW8dzJIZoB7Qs8qFFlKH5ihYH0wzM/vdBw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:16:45.001865Z","signed_message":"canonical_sha256_bytes"},"source_id":"2204.09950","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ce150b8065016ed434ce37e39304b983aa30786e4430e26c9fba454e73d3f54","sha256:9d51e7f444b07b166ea6b06a63d783dad04e2c63bdf3e8717ae62082de1efff9"],"state_sha256":"da8fdd9210b6c045d456fdf0b2124c019c7ff0c47c7a84b87a26e84a50b93dd9"}