{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:OLU5CPFUNPXNB3IDCYPFST7H4Q","short_pith_number":"pith:OLU5CPFU","schema_version":"1.0","canonical_sha256":"72e9d13cb46beed0ed03161e594fe7e43a017b3863ed98aa9126363d6412c731","source":{"kind":"arxiv","id":"2412.09216","version":1},"attestation_state":"computed","paper":{"title":"Crystal Symmetry Selected Pure Spin Photocurrent in Altermagnetic Insulators","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Dian Tan, Ranquan Cao, Ruixiang Fei, Ruizhi Dong","submitted_at":"2024-12-12T12:12:32Z","abstract_excerpt":"The generation of time-reversal-odd spin-current in metallic altermagnets has attracted considerable interest in spintronics. However, producing pure spin-current in insulating materials remains both challenging and desirable, as insulating states are frequently found in antiferromagnets. Nonlinear photogalvanic effects offer a promising method for generating spin-current in insulators. We here revealed that spin and charge photocurrents in altermagnets are protected by spin point group symmetry. Unlike the photocurrents in parity-time symmetric materials, where spin-orbit coupling (SOC) induc"},"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":"2412.09216","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-12-12T12:12:32Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"8b5fa4580d6b920c02e312529b5b7d208e7779dd4b47db5bc64c78654e89769f","abstract_canon_sha256":"da2668fff828aae55701706c1a0907c51e95f424c9c802b819584a9efe5b33d6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-21T02:04:47.262522Z","signature_b64":"6fPBdwCrCujokr7udfbBVMslgy2aHoLVmDLrQ+1f9A0YawLXHpdjGeS8nVebUH34FVivLxe/xkEpOorGkqdSCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"72e9d13cb46beed0ed03161e594fe7e43a017b3863ed98aa9126363d6412c731","last_reissued_at":"2026-05-21T02:04:47.261696Z","signature_status":"signed_v1","first_computed_at":"2026-05-21T02:04:47.261696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Crystal Symmetry Selected Pure Spin Photocurrent in Altermagnetic Insulators","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Dian Tan, Ranquan Cao, Ruixiang Fei, Ruizhi Dong","submitted_at":"2024-12-12T12:12:32Z","abstract_excerpt":"The generation of time-reversal-odd spin-current in metallic altermagnets has attracted considerable interest in spintronics. However, producing pure spin-current in insulating materials remains both challenging and desirable, as insulating states are frequently found in antiferromagnets. Nonlinear photogalvanic effects offer a promising method for generating spin-current in insulators. We here revealed that spin and charge photocurrents in altermagnets are protected by spin point group symmetry. Unlike the photocurrents in parity-time symmetric materials, where spin-orbit coupling (SOC) induc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.09216","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/2412.09216/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":"2412.09216","created_at":"2026-05-21T02:04:47.261842+00:00"},{"alias_kind":"arxiv_version","alias_value":"2412.09216v1","created_at":"2026-05-21T02:04:47.261842+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.09216","created_at":"2026-05-21T02:04:47.261842+00:00"},{"alias_kind":"pith_short_12","alias_value":"OLU5CPFUNPXN","created_at":"2026-05-21T02:04:47.261842+00:00"},{"alias_kind":"pith_short_16","alias_value":"OLU5CPFUNPXNB3ID","created_at":"2026-05-21T02:04:47.261842+00:00"},{"alias_kind":"pith_short_8","alias_value":"OLU5CPFU","created_at":"2026-05-21T02:04:47.261842+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2509.05620","citing_title":"Quantization of spin circular photogalvanic effect in altermagnetic Weyl semimetals","ref_index":70,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q","json":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q.json","graph_json":"https://pith.science/api/pith-number/OLU5CPFUNPXNB3IDCYPFST7H4Q/graph.json","events_json":"https://pith.science/api/pith-number/OLU5CPFUNPXNB3IDCYPFST7H4Q/events.json","paper":"https://pith.science/paper/OLU5CPFU"},"agent_actions":{"view_html":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q","download_json":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q.json","view_paper":"https://pith.science/paper/OLU5CPFU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2412.09216&json=true","fetch_graph":"https://pith.science/api/pith-number/OLU5CPFUNPXNB3IDCYPFST7H4Q/graph.json","fetch_events":"https://pith.science/api/pith-number/OLU5CPFUNPXNB3IDCYPFST7H4Q/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q/action/storage_attestation","attest_author":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q/action/author_attestation","sign_citation":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q/action/citation_signature","submit_replication":"https://pith.science/pith/OLU5CPFUNPXNB3IDCYPFST7H4Q/action/replication_record"}},"created_at":"2026-05-21T02:04:47.261842+00:00","updated_at":"2026-05-21T02:04:47.261842+00:00"}