{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:KL4475ZVPKSK5CB3VP5PMORD2C","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":"3b665f1247b6fb10fc79b114efc9145c687054b70a7f1249a338526b2db239e3","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","title_canon_sha256":"f03ce5bc1ce1bd5e9def7f1167126b1733786657c288ad0a6ac014ba786ad4f9"},"schema_version":"1.0","source":{"id":"2409.03088","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.03088","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"arxiv_version","alias_value":"2409.03088v1","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.03088","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_12","alias_value":"KL4475ZVPKSK","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_16","alias_value":"KL4475ZVPKSK5CB3","created_at":"2026-07-05T09:03:26Z"},{"alias_kind":"pith_short_8","alias_value":"KL4475ZV","created_at":"2026-07-05T09:03:26Z"}],"graph_snapshots":[{"event_id":"sha256:f4036f17e77e36c0985c0a55c4088f393290f50494df292686bdbb39c72fcfdf","target":"graph","created_at":"2026-07-05T09:03:26Z","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/2409.03088/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The optical manipulation of magnetism enabled by rare earth-transition metal ferrimagnets holds the promise of ultrafast, energy efficient spintronic technologies. This work investigates laser-induced picosecond spin currents generated by ferrimagnetic GdCo via terahertz emission spectroscopy. A suppression of the THz emission and spin current is observed at magnetization compensation when varying the temperature or alloy composition in the presence of a magnetic field. It is demonstrated that this is due to the formation of domains in the GdCo equilibrium magnetic configuration. Without an ap","authors_text":"Chiara Ciccarelli, Dominik Hamara, Guillermo Nava Antonio, Joseph Barker, Jude Compton-Stewart, Jun-Xiao Lin, Michel Hehn, Quentin Remy, St\\'ephane Mangin, Thomas Hauet, Yann Le Guen","cross_cats":["cond-mat.mtrl-sci","physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","title":"Origin of the laser-induced picosecond spin current across magnetization compensation in ferrimagnetic GdCo"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.03088","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":"sha256:23238320213b20d9cf31fdb5b841f830cda537b4aab107a7e80c9be7d50f0974","target":"record","created_at":"2026-07-05T09:03:26Z","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":"3b665f1247b6fb10fc79b114efc9145c687054b70a7f1249a338526b2db239e3","cross_cats_sorted":["cond-mat.mtrl-sci","physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2024-09-04T21:23:19Z","title_canon_sha256":"f03ce5bc1ce1bd5e9def7f1167126b1733786657c288ad0a6ac014ba786ad4f9"},"schema_version":"1.0","source":{"id":"2409.03088","kind":"arxiv","version":1}},"canonical_sha256":"52f9cff7357aa4ae883babfaf63a23d08903f1018eef78e00888cdcb45fa5ff4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52f9cff7357aa4ae883babfaf63a23d08903f1018eef78e00888cdcb45fa5ff4","first_computed_at":"2026-07-05T09:03:26.044192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:03:26.044192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oE0mkRVDE3x+wT+TzYRct/NLtPIRGK0l5cgg1xmyEp0OpuCjUvjMMyjT3R8y/ubpowiDLDGDKu1wFpDWpEviCw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:03:26.044600Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.03088","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23238320213b20d9cf31fdb5b841f830cda537b4aab107a7e80c9be7d50f0974","sha256:f4036f17e77e36c0985c0a55c4088f393290f50494df292686bdbb39c72fcfdf"],"state_sha256":"2af81342e349b9f68af65e71f235d3ebd92feb854b35534b8383122ef77a2e57"}