{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:CE53H4TIOUEAIXTJMQV6YUWRLP","short_pith_number":"pith:CE53H4TI","schema_version":"1.0","canonical_sha256":"113bb3f2687508045e69642bec52d15bef7f89198f5951819575d28eaf6bf235","source":{"kind":"arxiv","id":"0911.2027","version":3},"attestation_state":"computed","paper":{"title":"Nonlinear screening of charges induced in graphene by metal contacts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.other"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. A. Starikov, G. Brocks, P. A. Khomyakov, P. J. Kelly","submitted_at":"2009-11-10T23:22:50Z","abstract_excerpt":"To understand the band bending caused by metal contacts, we study the potential and charge density induced in graphene in response to contact with a metal strip. We find that the screening is weak by comparison with a normal metal as a consequence of the ultra-relativistic nature of the electron spectrum near the Fermi energy. The induced potential decays with the distance from the metal contact as x^{-1/2} and x^{-1} for undoped and doped graphene, respectively, breaking its spatial homogeneity. In the contact region the metal contact can give rise to the formation of a p-p', n-n', p-n juncti"},"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":"0911.2027","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-11-10T23:22:50Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.other"],"title_canon_sha256":"768481ae562314003611d6753605557bfc54d5515343c4f592eb6bd1ab9381e0","abstract_canon_sha256":"0cb46e0cb34ee03425be795e7b1ed8795f20f883d774a1af58d5bfa9dfd38bdc"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:48.908666Z","signature_b64":"jTEfIeEz/Nczv9yYjIFCSq0kL3gp4KuvAxwctXU+zg0a+KqdGgmu3TSYC9a/O30xyoK68o391gb5JzBFo60EAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"113bb3f2687508045e69642bec52d15bef7f89198f5951819575d28eaf6bf235","last_reissued_at":"2026-05-18T02:10:48.907872Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:48.907872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Nonlinear screening of charges induced in graphene by metal contacts","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.other"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. A. Starikov, G. Brocks, P. A. Khomyakov, P. J. Kelly","submitted_at":"2009-11-10T23:22:50Z","abstract_excerpt":"To understand the band bending caused by metal contacts, we study the potential and charge density induced in graphene in response to contact with a metal strip. We find that the screening is weak by comparison with a normal metal as a consequence of the ultra-relativistic nature of the electron spectrum near the Fermi energy. The induced potential decays with the distance from the metal contact as x^{-1/2} and x^{-1} for undoped and doped graphene, respectively, breaking its spatial homogeneity. In the contact region the metal contact can give rise to the formation of a p-p', n-n', p-n juncti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.2027","kind":"arxiv","version":3},"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":"0911.2027","created_at":"2026-05-18T02:10:48.908003+00:00"},{"alias_kind":"arxiv_version","alias_value":"0911.2027v3","created_at":"2026-05-18T02:10:48.908003+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.2027","created_at":"2026-05-18T02:10:48.908003+00:00"},{"alias_kind":"pith_short_12","alias_value":"CE53H4TIOUEA","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_16","alias_value":"CE53H4TIOUEAIXTJ","created_at":"2026-05-18T12:25:59.703012+00:00"},{"alias_kind":"pith_short_8","alias_value":"CE53H4TI","created_at":"2026-05-18T12:25:59.703012+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/CE53H4TIOUEAIXTJMQV6YUWRLP","json":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP.json","graph_json":"https://pith.science/api/pith-number/CE53H4TIOUEAIXTJMQV6YUWRLP/graph.json","events_json":"https://pith.science/api/pith-number/CE53H4TIOUEAIXTJMQV6YUWRLP/events.json","paper":"https://pith.science/paper/CE53H4TI"},"agent_actions":{"view_html":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP","download_json":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP.json","view_paper":"https://pith.science/paper/CE53H4TI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0911.2027&json=true","fetch_graph":"https://pith.science/api/pith-number/CE53H4TIOUEAIXTJMQV6YUWRLP/graph.json","fetch_events":"https://pith.science/api/pith-number/CE53H4TIOUEAIXTJMQV6YUWRLP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP/action/storage_attestation","attest_author":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP/action/author_attestation","sign_citation":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP/action/citation_signature","submit_replication":"https://pith.science/pith/CE53H4TIOUEAIXTJMQV6YUWRLP/action/replication_record"}},"created_at":"2026-05-18T02:10:48.908003+00:00","updated_at":"2026-05-18T02:10:48.908003+00:00"}