{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:KCLTBMQPX2QAPJKECZSGQCTI26","short_pith_number":"pith:KCLTBMQP","schema_version":"1.0","canonical_sha256":"509730b20fbea007a5441664680a68d78dd6aff677622510d426896e1ce5cde0","source":{"kind":"arxiv","id":"1010.1374","version":2},"attestation_state":"computed","paper":{"title":"Hot electron driven enhancement of spin-lattice coupling in 4f ferromagnets observed by femtosecond x-ray magnetic circular dichroism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexey Melnikov, Christian Stamm, Cornelius Gahl, Hermann A. D\\\"urr, Marko Wietstruk, Martin Weinelt, Muhammad Sultan, Niko Pontius, Torsten Kachel, Uwe Bovensiepen","submitted_at":"2010-10-07T09:04:48Z","abstract_excerpt":"Femtosecond x-ray magnetic circular dichroism was used to study the time-dependent magnetic moment of 4 fs electrons in the ferromagnets Gd and Tb, which are known for their different spin-lattice coupling. We observe a two-step demagnetization with an ultrafast demagnetization time of 750 fs identical for both systems and slower times which differ sizeably with 40 ps for Gd and 8 ps for Tb. We conclude that spin-lattice coupling in the electronically excited state is enhanced up to orders of magnitude compared to equilibrium."},"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":"1010.1374","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2010-10-07T09:04:48Z","cross_cats_sorted":[],"title_canon_sha256":"acf64ddbbf6168ddfae2b8e0d80dab6b9a63953dd686391b5d1b3559e1a3e827","abstract_canon_sha256":"08ba6cfde1ce5b7492e283ce4231d4ad37361dffab7b20aa4323318614714c0e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:30:26.144233Z","signature_b64":"IvWopS8R8umlxG99qHzZHJF3eddbqffoePPdHaj1AHN0MJ6JELz6jAGluPKhVgeYqPuZwKrMPgIwciD0+zHwCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"509730b20fbea007a5441664680a68d78dd6aff677622510d426896e1ce5cde0","last_reissued_at":"2026-05-18T03:30:26.143452Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:30:26.143452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Hot electron driven enhancement of spin-lattice coupling in 4f ferromagnets observed by femtosecond x-ray magnetic circular dichroism","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexey Melnikov, Christian Stamm, Cornelius Gahl, Hermann A. D\\\"urr, Marko Wietstruk, Martin Weinelt, Muhammad Sultan, Niko Pontius, Torsten Kachel, Uwe Bovensiepen","submitted_at":"2010-10-07T09:04:48Z","abstract_excerpt":"Femtosecond x-ray magnetic circular dichroism was used to study the time-dependent magnetic moment of 4 fs electrons in the ferromagnets Gd and Tb, which are known for their different spin-lattice coupling. We observe a two-step demagnetization with an ultrafast demagnetization time of 750 fs identical for both systems and slower times which differ sizeably with 40 ps for Gd and 8 ps for Tb. We conclude that spin-lattice coupling in the electronically excited state is enhanced up to orders of magnitude compared to equilibrium."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.1374","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1010.1374","created_at":"2026-05-18T03:30:26.143592+00:00"},{"alias_kind":"arxiv_version","alias_value":"1010.1374v2","created_at":"2026-05-18T03:30:26.143592+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.1374","created_at":"2026-05-18T03:30:26.143592+00:00"},{"alias_kind":"pith_short_12","alias_value":"KCLTBMQPX2QA","created_at":"2026-05-18T12:26:09.077623+00:00"},{"alias_kind":"pith_short_16","alias_value":"KCLTBMQPX2QAPJKE","created_at":"2026-05-18T12:26:09.077623+00:00"},{"alias_kind":"pith_short_8","alias_value":"KCLTBMQP","created_at":"2026-05-18T12:26:09.077623+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/KCLTBMQPX2QAPJKECZSGQCTI26","json":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26.json","graph_json":"https://pith.science/api/pith-number/KCLTBMQPX2QAPJKECZSGQCTI26/graph.json","events_json":"https://pith.science/api/pith-number/KCLTBMQPX2QAPJKECZSGQCTI26/events.json","paper":"https://pith.science/paper/KCLTBMQP"},"agent_actions":{"view_html":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26","download_json":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26.json","view_paper":"https://pith.science/paper/KCLTBMQP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1010.1374&json=true","fetch_graph":"https://pith.science/api/pith-number/KCLTBMQPX2QAPJKECZSGQCTI26/graph.json","fetch_events":"https://pith.science/api/pith-number/KCLTBMQPX2QAPJKECZSGQCTI26/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26/action/storage_attestation","attest_author":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26/action/author_attestation","sign_citation":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26/action/citation_signature","submit_replication":"https://pith.science/pith/KCLTBMQPX2QAPJKECZSGQCTI26/action/replication_record"}},"created_at":"2026-05-18T03:30:26.143592+00:00","updated_at":"2026-05-18T03:30:26.143592+00:00"}