{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:SGCVKRI44DKBIAHMOTMBHL5R4L","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":"f380bd87af3cd18e88fd038e7aca07e06324eafb992f98bef52b23d8c6bfb83b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-13T01:26:22Z","title_canon_sha256":"17f5ee469284549bd3ea78a4425def842c4e921727ef7bfe6c7d83ea3ec52569"},"schema_version":"1.0","source":{"id":"1804.04761","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.04761","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"1804.04761v1","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.04761","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"SGCVKRI44DKB","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"SGCVKRI44DKBIAHM","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"SGCVKRI4","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:e978e194655db7ac3e7ec11d908fa7aa4b3364b0a66c44eeed821bece6f346c0","target":"graph","created_at":"2026-05-18T00:02:01Z","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"},"paper":{"abstract_excerpt":"We present a simultaneous investigation of coherent spin dynamics in both localized and itinerant carriers in Fe/GaAs heterostructures using ultrafast and spin-resolved pump-probe spectroscopy. We find that for excitation densities that push the transient Fermi energy of photocarriers above the mobility edge there exist two distinct precession frequencies in the ob-served spin dynamics, allowing us to simultaneously monitor both localized and itinerant states. For low magnetic fields (below 3 T) the beat frequency between these two excitations evolves linearly, indicating that the nuclear pola","authors_text":"E. Johnston-Halperin, M. E. Flatt\\'e, N. J. Harmon, Patrick Odenthal, R. K. Kawakami, Yu-Sheng Ou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-13T01:26:22Z","title":"Tuning Spin Dynamics and Localization Near the Metal-Insulator Transition in Fe/GaAs heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.04761","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":"sha256:975edfe36fe617d566867ec99b96c5db935b794144e6e41c1b785e5aae999021","target":"record","created_at":"2026-05-18T00:02:01Z","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":"f380bd87af3cd18e88fd038e7aca07e06324eafb992f98bef52b23d8c6bfb83b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-04-13T01:26:22Z","title_canon_sha256":"17f5ee469284549bd3ea78a4425def842c4e921727ef7bfe6c7d83ea3ec52569"},"schema_version":"1.0","source":{"id":"1804.04761","kind":"arxiv","version":1}},"canonical_sha256":"918555451ce0d41400ec74d813afb1e2d3c645c341d6c2c96b4952817c425d61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"918555451ce0d41400ec74d813afb1e2d3c645c341d6c2c96b4952817c425d61","first_computed_at":"2026-05-18T00:02:01.314720Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:01.314720Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QnXGSVpwEK54lu9NazqsT1pMet01oYVepg+jf7RHBV6krbUHJtpT6DaQsm6rut+f+tMkISX6Zbx8+RKtRB9qDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:01.315295Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.04761","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:975edfe36fe617d566867ec99b96c5db935b794144e6e41c1b785e5aae999021","sha256:e978e194655db7ac3e7ec11d908fa7aa4b3364b0a66c44eeed821bece6f346c0"],"state_sha256":"aaec2e7ad7d255aad3720382b2632d22f98657ffb0ebb7dd3d85e4ff4da98450"}