{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:QXCG73NSXC3YRYS4MN6NB62YO4","short_pith_number":"pith:QXCG73NS","schema_version":"1.0","canonical_sha256":"85c46fedb2b8b788e25c637cd0fb587715151f4d995446695251efd38bfa1ff9","source":{"kind":"arxiv","id":"2402.05613","version":1},"attestation_state":"computed","paper":{"title":"Valley-dependent Multiple Quantum States and Topological Transitions in Germanene-based Ferromagnetic van der Waals Heterostructures","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.comp-ph","authors_text":"Feng Xue, Jiaheng Li, Ruqian Wu, Wenhui Duan, Yizhou Liu, Yong Xu","submitted_at":"2024-02-08T12:16:23Z","abstract_excerpt":"Topological and valleytronic materials are promising for spintronic and quantum applications due to their unique properties. Using first principles calculations, we demonstrate that germanene (Ge)-based ferromagnetic heterostructures can exhibit multiple quantum states such as quantum anomalous Hall effect (QAHE) with Chern numbers of C=-1 or C=-2, quantum valley Hall effect (QVHE) with a valley Chern number of C$v$=2, valley-polarized quantum anomalous Hall effect (VP-QAHE) with two Chern numbers of C=-1 and C$v$=-1 as well as time-reversal symmetry broken quantum spin Hall effect (T-broken Q"},"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":"2402.05613","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.comp-ph","submitted_at":"2024-02-08T12:16:23Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"10fb4393ee295691b3cf60bbb92ae0ffb76ba73aedc8772114a28dc23657d0b4","abstract_canon_sha256":"e9b4e7a72631c0b4a057fbb49678be444515242b1286d016a028e759e0687a73"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:42:53.424452Z","signature_b64":"roMsnsY+UpHrDUupYvIYd8YeO2QbhrUyDl48Jer7Rk0vri0sceFcutNhR10/T8Zsk3M+ZjsBp2q1j0X7jr9KCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85c46fedb2b8b788e25c637cd0fb587715151f4d995446695251efd38bfa1ff9","last_reissued_at":"2026-07-05T07:42:53.423962Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:42:53.423962Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Valley-dependent Multiple Quantum States and Topological Transitions in Germanene-based Ferromagnetic van der Waals Heterostructures","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"physics.comp-ph","authors_text":"Feng Xue, Jiaheng Li, Ruqian Wu, Wenhui Duan, Yizhou Liu, Yong Xu","submitted_at":"2024-02-08T12:16:23Z","abstract_excerpt":"Topological and valleytronic materials are promising for spintronic and quantum applications due to their unique properties. Using first principles calculations, we demonstrate that germanene (Ge)-based ferromagnetic heterostructures can exhibit multiple quantum states such as quantum anomalous Hall effect (QAHE) with Chern numbers of C=-1 or C=-2, quantum valley Hall effect (QVHE) with a valley Chern number of C$v$=2, valley-polarized quantum anomalous Hall effect (VP-QAHE) with two Chern numbers of C=-1 and C$v$=-1 as well as time-reversal symmetry broken quantum spin Hall effect (T-broken Q"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.05613","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/2402.05613/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2402.05613","created_at":"2026-07-05T07:42:53.424018+00:00"},{"alias_kind":"arxiv_version","alias_value":"2402.05613v1","created_at":"2026-07-05T07:42:53.424018+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.05613","created_at":"2026-07-05T07:42:53.424018+00:00"},{"alias_kind":"pith_short_12","alias_value":"QXCG73NSXC3Y","created_at":"2026-07-05T07:42:53.424018+00:00"},{"alias_kind":"pith_short_16","alias_value":"QXCG73NSXC3YRYS4","created_at":"2026-07-05T07:42:53.424018+00:00"},{"alias_kind":"pith_short_8","alias_value":"QXCG73NS","created_at":"2026-07-05T07:42:53.424018+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/QXCG73NSXC3YRYS4MN6NB62YO4","json":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4.json","graph_json":"https://pith.science/api/pith-number/QXCG73NSXC3YRYS4MN6NB62YO4/graph.json","events_json":"https://pith.science/api/pith-number/QXCG73NSXC3YRYS4MN6NB62YO4/events.json","paper":"https://pith.science/paper/QXCG73NS"},"agent_actions":{"view_html":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4","download_json":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4.json","view_paper":"https://pith.science/paper/QXCG73NS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2402.05613&json=true","fetch_graph":"https://pith.science/api/pith-number/QXCG73NSXC3YRYS4MN6NB62YO4/graph.json","fetch_events":"https://pith.science/api/pith-number/QXCG73NSXC3YRYS4MN6NB62YO4/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4/action/storage_attestation","attest_author":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4/action/author_attestation","sign_citation":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4/action/citation_signature","submit_replication":"https://pith.science/pith/QXCG73NSXC3YRYS4MN6NB62YO4/action/replication_record"}},"created_at":"2026-07-05T07:42:53.424018+00:00","updated_at":"2026-07-05T07:42:53.424018+00:00"}