{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:NXKYTVNNVPO5DENP667IOECRS7","short_pith_number":"pith:NXKYTVNN","schema_version":"1.0","canonical_sha256":"6dd589d5adabddd191aff7be87105197ea8d030f331c635a3a2b532c1e608d84","source":{"kind":"arxiv","id":"1910.01556","version":1},"attestation_state":"computed","paper":{"title":"Element-selective tracking ultrafast demagnetization process in Co/Pt multilayer thin films by the resonant magneto-optical Kerr effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hiroki Wadati, Iwao Matsuda, Kohei Yamamoto, Koki Takanashi, Makina Yabashi, Shigeki Owada, Souliman El Moussaoui, Susumu Yamamoto, Takeshi Seki, Yasuyuki Hirata, Yuya Kubota","submitted_at":"2019-10-03T15:44:13Z","abstract_excerpt":"We examined the photo-induced dynamics of ferromagnetic Co/Pt thin films demonstrating perpendicular magnetic anisotropy with element specificity using resonant polar magneto-optical Kerr effect measurements at Pt~N${}_{6,7}$ and Co~M${}_{2,3}$ edges with an x-ray free electron laser. The obtained results showed a clear element dependence of photo-induced demagnetization time scales: $\\tau_\\textrm{demag.}^\\textrm{Co}=80\\pm60~\\textrm{fs}$ and $\\tau_\\textrm{demag.}^\\textrm{Pt}=640\\pm140~\\textrm{fs}$. This dependence is explained by the induced moment of the Pt atom by current flow from the Co la"},"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":"1910.01556","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-10-03T15:44:13Z","cross_cats_sorted":[],"title_canon_sha256":"7485cd10a564ad2008e177b0090a60ffecb44eee09b0560b0b69472135a82481","abstract_canon_sha256":"4ea042c1a120f6b8811b7c96a132b39ed445532a53f96a8903afd5e32ae194d6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:02:27.811137Z","signature_b64":"n5E4rQFNeQLNbw1Cmb5ApoFhJA0Q3oXC2oMCGauAfpCoAocfY5zC7zw5J5yF1oyXl/LokqWRT5LLNR67ywYUDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6dd589d5adabddd191aff7be87105197ea8d030f331c635a3a2b532c1e608d84","last_reissued_at":"2026-07-05T01:02:27.810687Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:02:27.810687Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Element-selective tracking ultrafast demagnetization process in Co/Pt multilayer thin films by the resonant magneto-optical Kerr effect","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hiroki Wadati, Iwao Matsuda, Kohei Yamamoto, Koki Takanashi, Makina Yabashi, Shigeki Owada, Souliman El Moussaoui, Susumu Yamamoto, Takeshi Seki, Yasuyuki Hirata, Yuya Kubota","submitted_at":"2019-10-03T15:44:13Z","abstract_excerpt":"We examined the photo-induced dynamics of ferromagnetic Co/Pt thin films demonstrating perpendicular magnetic anisotropy with element specificity using resonant polar magneto-optical Kerr effect measurements at Pt~N${}_{6,7}$ and Co~M${}_{2,3}$ edges with an x-ray free electron laser. The obtained results showed a clear element dependence of photo-induced demagnetization time scales: $\\tau_\\textrm{demag.}^\\textrm{Co}=80\\pm60~\\textrm{fs}$ and $\\tau_\\textrm{demag.}^\\textrm{Pt}=640\\pm140~\\textrm{fs}$. This dependence is explained by the induced moment of the Pt atom by current flow from the Co la"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.01556","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/1910.01556/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":"1910.01556","created_at":"2026-07-05T01:02:27.810752+00:00"},{"alias_kind":"arxiv_version","alias_value":"1910.01556v1","created_at":"2026-07-05T01:02:27.810752+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.01556","created_at":"2026-07-05T01:02:27.810752+00:00"},{"alias_kind":"pith_short_12","alias_value":"NXKYTVNNVPO5","created_at":"2026-07-05T01:02:27.810752+00:00"},{"alias_kind":"pith_short_16","alias_value":"NXKYTVNNVPO5DENP","created_at":"2026-07-05T01:02:27.810752+00:00"},{"alias_kind":"pith_short_8","alias_value":"NXKYTVNN","created_at":"2026-07-05T01:02:27.810752+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/NXKYTVNNVPO5DENP667IOECRS7","json":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7.json","graph_json":"https://pith.science/api/pith-number/NXKYTVNNVPO5DENP667IOECRS7/graph.json","events_json":"https://pith.science/api/pith-number/NXKYTVNNVPO5DENP667IOECRS7/events.json","paper":"https://pith.science/paper/NXKYTVNN"},"agent_actions":{"view_html":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7","download_json":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7.json","view_paper":"https://pith.science/paper/NXKYTVNN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1910.01556&json=true","fetch_graph":"https://pith.science/api/pith-number/NXKYTVNNVPO5DENP667IOECRS7/graph.json","fetch_events":"https://pith.science/api/pith-number/NXKYTVNNVPO5DENP667IOECRS7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7/action/storage_attestation","attest_author":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7/action/author_attestation","sign_citation":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7/action/citation_signature","submit_replication":"https://pith.science/pith/NXKYTVNNVPO5DENP667IOECRS7/action/replication_record"}},"created_at":"2026-07-05T01:02:27.810752+00:00","updated_at":"2026-07-05T01:02:27.810752+00:00"}