{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:KTYQHN3A5CLPZ43ZVI3UGHKVI5","short_pith_number":"pith:KTYQHN3A","canonical_record":{"source":{"id":"2212.14281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-29T12:21:47Z","cross_cats_sorted":[],"title_canon_sha256":"75f6c459ff02c8662a2d7b5b0c86578e9f3c5c6c02073e55e14571863fc4090f","abstract_canon_sha256":"953d06ccec80005ff70fb2d36be733066b42dc44de403f7d8b3d0f22d0a02942"},"schema_version":"1.0"},"canonical_sha256":"54f103b760e896fcf379aa37431d554743285590ef776e64a6ceec79cc2e05e7","source":{"kind":"arxiv","id":"2212.14281","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.14281","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"arxiv_version","alias_value":"2212.14281v1","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.14281","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"pith_short_12","alias_value":"KTYQHN3A5CLP","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"pith_short_16","alias_value":"KTYQHN3A5CLPZ43Z","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"pith_short_8","alias_value":"KTYQHN3A","created_at":"2026-07-05T05:29:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:KTYQHN3A5CLPZ43ZVI3UGHKVI5","target":"record","payload":{"canonical_record":{"source":{"id":"2212.14281","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-29T12:21:47Z","cross_cats_sorted":[],"title_canon_sha256":"75f6c459ff02c8662a2d7b5b0c86578e9f3c5c6c02073e55e14571863fc4090f","abstract_canon_sha256":"953d06ccec80005ff70fb2d36be733066b42dc44de403f7d8b3d0f22d0a02942"},"schema_version":"1.0"},"canonical_sha256":"54f103b760e896fcf379aa37431d554743285590ef776e64a6ceec79cc2e05e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:29:08.402536Z","signature_b64":"uKEeknBXxuq6oo/Fe5/slm+JJoxxWkKjA+IdL3hIwOk8tS9Xjjt3mXgbAy6cJCIO2Y6LV8yC5DBxZe0EZPr1Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54f103b760e896fcf379aa37431d554743285590ef776e64a6ceec79cc2e05e7","last_reissued_at":"2026-07-05T05:29:08.402116Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:29:08.402116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.14281","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:29:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q/NjPPxo0Kv3rGhIifZXv/zrr++kYoUtySXpq2O2kJqPXXiXBKtFlCERg5NZWrInwXmg18h6gwCURGuDlNcZBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:09:16.157325Z"},"content_sha256":"2b4cf09c564aae55d9a7529cc144aa296e7fae75f38676c4c632900fcb1e265e","schema_version":"1.0","event_id":"sha256:2b4cf09c564aae55d9a7529cc144aa296e7fae75f38676c4c632900fcb1e265e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:KTYQHN3A5CLPZ43ZVI3UGHKVI5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Field-free spin-orbit torque-induced switching of perpendicular magnetization at room temperature in WTe2/ferromagnet heterostructures","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Fei Huang, Jiajv Yang, JinCheng Peng, Jun Du, Lujun Wei, Pai Liu, Pengchao Zhang, Ruobai Liu, Xiaomiao Yin, Yong Pu","submitted_at":"2022-12-29T12:21:47Z","abstract_excerpt":"Spin-orbit torque (SOT) provides an efficient way to achieve charge-to-spin conversion and can switch perpendicular magnetization, which is essential for designing novel energy-efficient spintronic devices. An out-of-plane SOT could directly switch perpendicular magnetization. Encouragingly, field-free perpendicular magnetization switching of a two-dimensional (2D) material WTe2/ferromagnet (FM) bilayer has been reported recently, but the working temperature (200 K) is below room temperature. Here, we report the field-free perpendicular magnetization switching carried out at room temperature o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.14281","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2212.14281/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:29:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LvyRzKbm8KJk8/1A5NiX4XpYyci7XWcN9Cs5b1Kb9KkiusKQwme6c9wh2OUDgbR6stESgSSkP5w22+6fLQk8CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:09:16.157897Z"},"content_sha256":"89663fe7c4fe6a6692762e7786ac8514b53bb552d039553c010ad5ff789cee52","schema_version":"1.0","event_id":"sha256:89663fe7c4fe6a6692762e7786ac8514b53bb552d039553c010ad5ff789cee52"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KTYQHN3A5CLPZ43ZVI3UGHKVI5/bundle.json","state_url":"https://pith.science/pith/KTYQHN3A5CLPZ43ZVI3UGHKVI5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KTYQHN3A5CLPZ43ZVI3UGHKVI5/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-07T08:09:16Z","links":{"resolver":"https://pith.science/pith/KTYQHN3A5CLPZ43ZVI3UGHKVI5","bundle":"https://pith.science/pith/KTYQHN3A5CLPZ43ZVI3UGHKVI5/bundle.json","state":"https://pith.science/pith/KTYQHN3A5CLPZ43ZVI3UGHKVI5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KTYQHN3A5CLPZ43ZVI3UGHKVI5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:KTYQHN3A5CLPZ43ZVI3UGHKVI5","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":"953d06ccec80005ff70fb2d36be733066b42dc44de403f7d8b3d0f22d0a02942","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-29T12:21:47Z","title_canon_sha256":"75f6c459ff02c8662a2d7b5b0c86578e9f3c5c6c02073e55e14571863fc4090f"},"schema_version":"1.0","source":{"id":"2212.14281","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.14281","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"arxiv_version","alias_value":"2212.14281v1","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.14281","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"pith_short_12","alias_value":"KTYQHN3A5CLP","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"pith_short_16","alias_value":"KTYQHN3A5CLPZ43Z","created_at":"2026-07-05T05:29:08Z"},{"alias_kind":"pith_short_8","alias_value":"KTYQHN3A","created_at":"2026-07-05T05:29:08Z"}],"graph_snapshots":[{"event_id":"sha256:89663fe7c4fe6a6692762e7786ac8514b53bb552d039553c010ad5ff789cee52","target":"graph","created_at":"2026-07-05T05:29:08Z","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/2212.14281/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Spin-orbit torque (SOT) provides an efficient way to achieve charge-to-spin conversion and can switch perpendicular magnetization, which is essential for designing novel energy-efficient spintronic devices. An out-of-plane SOT could directly switch perpendicular magnetization. Encouragingly, field-free perpendicular magnetization switching of a two-dimensional (2D) material WTe2/ferromagnet (FM) bilayer has been reported recently, but the working temperature (200 K) is below room temperature. Here, we report the field-free perpendicular magnetization switching carried out at room temperature o","authors_text":"Fei Huang, Jiajv Yang, JinCheng Peng, Jun Du, Lujun Wei, Pai Liu, Pengchao Zhang, Ruobai Liu, Xiaomiao Yin, Yong Pu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-29T12:21:47Z","title":"Field-free spin-orbit torque-induced switching of perpendicular magnetization at room temperature in WTe2/ferromagnet heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.14281","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":"sha256:2b4cf09c564aae55d9a7529cc144aa296e7fae75f38676c4c632900fcb1e265e","target":"record","created_at":"2026-07-05T05:29:08Z","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":"953d06ccec80005ff70fb2d36be733066b42dc44de403f7d8b3d0f22d0a02942","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-12-29T12:21:47Z","title_canon_sha256":"75f6c459ff02c8662a2d7b5b0c86578e9f3c5c6c02073e55e14571863fc4090f"},"schema_version":"1.0","source":{"id":"2212.14281","kind":"arxiv","version":1}},"canonical_sha256":"54f103b760e896fcf379aa37431d554743285590ef776e64a6ceec79cc2e05e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"54f103b760e896fcf379aa37431d554743285590ef776e64a6ceec79cc2e05e7","first_computed_at":"2026-07-05T05:29:08.402116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:29:08.402116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uKEeknBXxuq6oo/Fe5/slm+JJoxxWkKjA+IdL3hIwOk8tS9Xjjt3mXgbAy6cJCIO2Y6LV8yC5DBxZe0EZPr1Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T05:29:08.402536Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.14281","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b4cf09c564aae55d9a7529cc144aa296e7fae75f38676c4c632900fcb1e265e","sha256:89663fe7c4fe6a6692762e7786ac8514b53bb552d039553c010ad5ff789cee52"],"state_sha256":"35802e5147f1e076189fcb8cec02611eb4ea44596c631e8f1618f91faed83ad0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IamrrXOi0UotmM3gzO3Fq7ixFCpT2Ok6nJOmKpu+FlbD6ETcoOgjCT4uInfAOQFAAOXevkMTH0yHL/AjwiPyCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T08:09:16.166599Z","bundle_sha256":"10d7023e4bf393300823a806a149aba413464ef02f210bf086bbcc6fee5fb05d"}}