{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:BFVKRLS5Q2464WFN3WHXUABQIU","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":"45a53b4c936b2e72da19f9f3db92201dcf25b321eb49f31fd3017ff314a6903d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-10-22T19:51:19Z","title_canon_sha256":"f4053e4655a012ee7881971db3116bbe80231de37a14d13f0844073ee9226ee9"},"schema_version":"1.0","source":{"id":"2410.17387","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.17387","created_at":"2026-07-05T09:59:00Z"},{"alias_kind":"arxiv_version","alias_value":"2410.17387v1","created_at":"2026-07-05T09:59:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.17387","created_at":"2026-07-05T09:59:00Z"},{"alias_kind":"pith_short_12","alias_value":"BFVKRLS5Q246","created_at":"2026-07-05T09:59:00Z"},{"alias_kind":"pith_short_16","alias_value":"BFVKRLS5Q2464WFN","created_at":"2026-07-05T09:59:00Z"},{"alias_kind":"pith_short_8","alias_value":"BFVKRLS5","created_at":"2026-07-05T09:59:00Z"}],"graph_snapshots":[{"event_id":"sha256:79136b217cdf5bab760d3a89af4306af9213204e8991af57136574c9edd0cd30","target":"graph","created_at":"2026-07-05T09:59:00Z","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/2410.17387/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the electronic structure of high-density layers of Sb dopants in a silicon host, so-called Si:Sb $\\delta$-layers. We show that, in spite of the known challenges in producing highly confined Sb $\\delta$-layers, sufficient confinement is created such that the lowest conduction band states ($\\Gamma$ states, studied in depth in other silicon $\\delta$-layers), become occupied and can be observed using angle-resolved photoemission spectroscopy. The electronic structure of the Si:Sb $\\delta$-layers closely resembles that of Si:P systems, where the observed conduction band is near-parab","authors_text":"Alexei B. Preobrajenski, Alv Johan Skarpeid, Anna Cecilie {\\AA}sland, Frode S. Strand, H{\\aa}kon I. R{\\o}st, Jill A. Miwa, Jinbang Hu, Johannes Bakkelund, John J. Flounders, Justin W. Wells, Marco Bianchi, Marte P. Stalsberg, Quinn T. Campbell, Simon P. Cooil, Victoria Bjelland, Zheshen Li","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-10-22T19:51:19Z","title":"Direct measurement of 2DEG states in shallow Si:Sb $\\delta$-layers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.17387","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":"sha256:56c026f5347048872847d7d575b3acca3fa3c8ae6d426899a0a7e778cdd98798","target":"record","created_at":"2026-07-05T09:59:00Z","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":"45a53b4c936b2e72da19f9f3db92201dcf25b321eb49f31fd3017ff314a6903d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2024-10-22T19:51:19Z","title_canon_sha256":"f4053e4655a012ee7881971db3116bbe80231de37a14d13f0844073ee9226ee9"},"schema_version":"1.0","source":{"id":"2410.17387","kind":"arxiv","version":1}},"canonical_sha256":"096aa8ae5d86b9ee58addd8f7a00304513dcef2c3698f53d039074fe725958fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"096aa8ae5d86b9ee58addd8f7a00304513dcef2c3698f53d039074fe725958fe","first_computed_at":"2026-07-05T09:59:00.542481Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:59:00.542481Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fm+AqPkax1jJWMseivNdfkaIz7fs7oZWWBv4dPImHiZcLI09g+AvRtNyt8YL2TXjWwHfs3GFIrPPAtsXLxeDAw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:59:00.542973Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.17387","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56c026f5347048872847d7d575b3acca3fa3c8ae6d426899a0a7e778cdd98798","sha256:79136b217cdf5bab760d3a89af4306af9213204e8991af57136574c9edd0cd30"],"state_sha256":"652d3d833a761f07c9142e809317f5bd76e979fcda5ccee86ae277bc90ecae8b"}