{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:DWMIXPNWFKCB2IGFNU3MMIZVDY","short_pith_number":"pith:DWMIXPNW","schema_version":"1.0","canonical_sha256":"1d988bbdb62a841d20c56d36c623351e07187490cd1d9fb95b280399dabb1f29","source":{"kind":"arxiv","id":"1602.02817","version":1},"attestation_state":"computed","paper":{"title":"Tunnel barrier design in donor nanostructures defined by hydrogen-resist lithography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Andreas Fuhrer, Nikola Pascher, Susanne Mueller, Szymon Hennel","submitted_at":"2016-02-08T23:34:35Z","abstract_excerpt":"A four-terminal donor quantum dot (QD) is used to characterize potential barriers between degenerately doped nanoscale contacts. The QD is fabricated by hydrogen-resist lithography on Si(001) in combination with $n$-type doping by phosphine. The four contacts have different separations ($d$ = 9, 12, 16 and 29 nm) to the central 6 nm $\\times$ 6 nm QD island, leading to different tunnel and capacitive coupling. Cryogenic transport measurements in the Coulomb-blockade (CB) regime are used to characterize these tunnel barriers. We find that field enhancement near the apex of narrow dopant leads is"},"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":"1602.02817","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-02-08T23:34:35Z","cross_cats_sorted":[],"title_canon_sha256":"5bf06cd6109d12a1aa6c3c2c61a186fe3cd4e17edbd042f48f707b9b47f2a971","abstract_canon_sha256":"965ba0f344032eadbfe271f0fc153e7c0c2b89098f686b4d0134a5302164297f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:18.499077Z","signature_b64":"HOUSBkPJRKUYOleh9rTsAQ+c8t5PJF+b00JszhcgG30jsdI9BP2Nzg4Sx5TBgoRv4y0YibVnTWB13jU3mMerAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1d988bbdb62a841d20c56d36c623351e07187490cd1d9fb95b280399dabb1f29","last_reissued_at":"2026-05-18T01:08:18.498415Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:18.498415Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Tunnel barrier design in donor nanostructures defined by hydrogen-resist lithography","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Andreas Fuhrer, Nikola Pascher, Susanne Mueller, Szymon Hennel","submitted_at":"2016-02-08T23:34:35Z","abstract_excerpt":"A four-terminal donor quantum dot (QD) is used to characterize potential barriers between degenerately doped nanoscale contacts. The QD is fabricated by hydrogen-resist lithography on Si(001) in combination with $n$-type doping by phosphine. The four contacts have different separations ($d$ = 9, 12, 16 and 29 nm) to the central 6 nm $\\times$ 6 nm QD island, leading to different tunnel and capacitive coupling. Cryogenic transport measurements in the Coulomb-blockade (CB) regime are used to characterize these tunnel barriers. We find that field enhancement near the apex of narrow dopant leads is"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.02817","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":""},"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":"1602.02817","created_at":"2026-05-18T01:08:18.498531+00:00"},{"alias_kind":"arxiv_version","alias_value":"1602.02817v1","created_at":"2026-05-18T01:08:18.498531+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.02817","created_at":"2026-05-18T01:08:18.498531+00:00"},{"alias_kind":"pith_short_12","alias_value":"DWMIXPNWFKCB","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_16","alias_value":"DWMIXPNWFKCB2IGF","created_at":"2026-05-18T12:30:12.583610+00:00"},{"alias_kind":"pith_short_8","alias_value":"DWMIXPNW","created_at":"2026-05-18T12:30:12.583610+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/DWMIXPNWFKCB2IGFNU3MMIZVDY","json":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY.json","graph_json":"https://pith.science/api/pith-number/DWMIXPNWFKCB2IGFNU3MMIZVDY/graph.json","events_json":"https://pith.science/api/pith-number/DWMIXPNWFKCB2IGFNU3MMIZVDY/events.json","paper":"https://pith.science/paper/DWMIXPNW"},"agent_actions":{"view_html":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY","download_json":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY.json","view_paper":"https://pith.science/paper/DWMIXPNW","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1602.02817&json=true","fetch_graph":"https://pith.science/api/pith-number/DWMIXPNWFKCB2IGFNU3MMIZVDY/graph.json","fetch_events":"https://pith.science/api/pith-number/DWMIXPNWFKCB2IGFNU3MMIZVDY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY/action/storage_attestation","attest_author":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY/action/author_attestation","sign_citation":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY/action/citation_signature","submit_replication":"https://pith.science/pith/DWMIXPNWFKCB2IGFNU3MMIZVDY/action/replication_record"}},"created_at":"2026-05-18T01:08:18.498531+00:00","updated_at":"2026-05-18T01:08:18.498531+00:00"}