{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:QBFEL6OKZDRO3FIDZCMDYEBKFQ","short_pith_number":"pith:QBFEL6OK","schema_version":"1.0","canonical_sha256":"804a45f9cac8e2ed9503c8983c102a2c07c14fea396cbfb69613fae05da63415","source":{"kind":"arxiv","id":"2605.10483","version":2},"attestation_state":"computed","paper":{"title":"Laser-induced demagnetization in a MAX phase (Cr0.5Mn0.5)2GaC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Laser pulses trigger two-step type-II demagnetization in the MAX phase (Cr0.5Mn0.5)2GaC, a signature of its two-dimensional magnetic order.","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"(2) Kirensky Institute of Physics), Alexandra Kalashnikova (1) ((1) Ioffe Institute, Artyom Gorshkov (1), Iaroslav Mogunov (1), Mikhail Rautskii (2), Tatyana Andryushchenko (2)","submitted_at":"2026-05-11T12:43:58Z","abstract_excerpt":"Magnetic MAX phases are nanolaminated metals that combine ceramic-like thermal and mechanical stability with peculiar magnetic ordering, making them attractive for thin-film optoelectronics and spintronics. However, laser-induced magnetization dynamics in MAX phases remains largely unexplored. Here, we investigate laser-induced ultrafast demagnetization in a 40-nm-thick epitaxial film of the magnetic MAX phase (Cr0.5Mn0.5)2GaC, which magnetically orders below ~220 K, using time-resolved magneto-optical Kerr effect spectroscopy. We reveal, that the demagnetization transients exhibit a two-step "},"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":true},"canonical_record":{"source":{"id":"2605.10483","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-05-11T12:43:58Z","cross_cats_sorted":[],"title_canon_sha256":"c25bbb59310db460331a15f3dca10d85e5eb68ede56f9da043042c45d9f035fd","abstract_canon_sha256":"a72589c72608542c1cb76e6b06984460bd9721f01fc2cca1a46aa77db0f811b6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T02:03:43.288595Z","signature_b64":"6d7GG/W0HDS8RdHrimRGMPUjotmCuwp3h3OJ5oh7iKGD6MP3SXRJuNI5ACFfjwCFKNCQh+tc94VuKAi9kNatAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"804a45f9cac8e2ed9503c8983c102a2c07c14fea396cbfb69613fae05da63415","last_reissued_at":"2026-06-01T02:03:43.287580Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T02:03:43.287580Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Laser-induced demagnetization in a MAX phase (Cr0.5Mn0.5)2GaC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Laser pulses trigger two-step type-II demagnetization in the MAX phase (Cr0.5Mn0.5)2GaC, a signature of its two-dimensional magnetic order.","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"(2) Kirensky Institute of Physics), Alexandra Kalashnikova (1) ((1) Ioffe Institute, Artyom Gorshkov (1), Iaroslav Mogunov (1), Mikhail Rautskii (2), Tatyana Andryushchenko (2)","submitted_at":"2026-05-11T12:43:58Z","abstract_excerpt":"Magnetic MAX phases are nanolaminated metals that combine ceramic-like thermal and mechanical stability with peculiar magnetic ordering, making them attractive for thin-film optoelectronics and spintronics. However, laser-induced magnetization dynamics in MAX phases remains largely unexplored. Here, we investigate laser-induced ultrafast demagnetization in a 40-nm-thick epitaxial film of the magnetic MAX phase (Cr0.5Mn0.5)2GaC, which magnetically orders below ~220 K, using time-resolved magneto-optical Kerr effect spectroscopy. We reveal, that the demagnetization transients exhibit a two-step "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"the demagnetization transients exhibit a two-step type-II demagnetization - a signature of two-dimensional magnetic systems. The reconstructed spin heat capacity exhibits a weak temperature dependence, accounting for the absence of significant slowing down of demagnetization at elevated temperatures and fluences.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That the observed two-step transients are a direct signature of two-dimensional magnetism and that the three-temperature model fully captures the dynamics without additional channels or material-specific corrections.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"First observation of two-step type-II ultrafast demagnetization in (Cr0.5Mn0.5)2GaC MAX phase film below 250 K, with three-temperature model yielding electron-lattice, spin-lattice and electron-spin couplings and a weakly temperature-dependent spin heat capacity.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Laser pulses trigger two-step type-II demagnetization in the MAX phase (Cr0.5Mn0.5)2GaC, a signature of its two-dimensional magnetic order.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"aa626985c971d9ccc387f674f2d2959b1727960d4e009001915a3da3042e51c2"},"source":{"id":"2605.10483","kind":"arxiv","version":2},"verdict":{"id":"0fcc3125-195d-4375-8031-1dec70cbb80b","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-12T05:18:35.404282Z","strongest_claim":"the demagnetization transients exhibit a two-step type-II demagnetization - a signature of two-dimensional magnetic systems. The reconstructed spin heat capacity exhibits a weak temperature dependence, accounting for the absence of significant slowing down of demagnetization at elevated temperatures and fluences.","one_line_summary":"First observation of two-step type-II ultrafast demagnetization in (Cr0.5Mn0.5)2GaC MAX phase film below 250 K, with three-temperature model yielding electron-lattice, spin-lattice and electron-spin couplings and a weakly temperature-dependent spin heat capacity.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the observed two-step transients are a direct signature of two-dimensional magnetism and that the three-temperature model fully captures the dynamics without additional channels or material-specific corrections.","pith_extraction_headline":"Laser pulses trigger two-step type-II demagnetization in the MAX phase (Cr0.5Mn0.5)2GaC, a signature of its two-dimensional magnetic order."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.10483/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"claim_evidence","ran_at":"2026-05-20T06:02:00.827024Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T14:42:54.072386Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_title_agreement","ran_at":"2026-05-19T11:01:18.045045Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T09:16:11.248505Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"2d28fadd9c20825ec560cb29f63bcfd3540fe996d6fe7706beac7f495d814772"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"130335018b2ea8fb0e1ed5a83ac4357ffc2e84f5d7bf5150f8adc3f3f6bb755d"},"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":"2605.10483","created_at":"2026-06-01T02:03:43.287731+00:00"},{"alias_kind":"arxiv_version","alias_value":"2605.10483v2","created_at":"2026-06-01T02:03:43.287731+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.10483","created_at":"2026-06-01T02:03:43.287731+00:00"},{"alias_kind":"pith_short_12","alias_value":"QBFEL6OKZDRO","created_at":"2026-06-01T02:03:43.287731+00:00"},{"alias_kind":"pith_short_16","alias_value":"QBFEL6OKZDRO3FID","created_at":"2026-06-01T02:03:43.287731+00:00"},{"alias_kind":"pith_short_8","alias_value":"QBFEL6OK","created_at":"2026-06-01T02:03:43.287731+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":2,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ","json":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ.json","graph_json":"https://pith.science/api/pith-number/QBFEL6OKZDRO3FIDZCMDYEBKFQ/graph.json","events_json":"https://pith.science/api/pith-number/QBFEL6OKZDRO3FIDZCMDYEBKFQ/events.json","paper":"https://pith.science/paper/QBFEL6OK"},"agent_actions":{"view_html":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ","download_json":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ.json","view_paper":"https://pith.science/paper/QBFEL6OK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2605.10483&json=true","fetch_graph":"https://pith.science/api/pith-number/QBFEL6OKZDRO3FIDZCMDYEBKFQ/graph.json","fetch_events":"https://pith.science/api/pith-number/QBFEL6OKZDRO3FIDZCMDYEBKFQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ/action/storage_attestation","attest_author":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ/action/author_attestation","sign_citation":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ/action/citation_signature","submit_replication":"https://pith.science/pith/QBFEL6OKZDRO3FIDZCMDYEBKFQ/action/replication_record"}},"created_at":"2026-06-01T02:03:43.287731+00:00","updated_at":"2026-06-01T02:03:43.287731+00:00"}