{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:UNZT2W2VTP6V356CDQHOFEO5KQ","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":"132f50ff2d32ba7379e9b7f2b01b2be1fb5266fe889cc5ed100cd110e304cf4e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-10T12:30:22Z","title_canon_sha256":"d22b71339f4a2db63fdeab9711272dc0158ea1dddb24cc286c7c974a000176a5"},"schema_version":"1.0","source":{"id":"1111.2459","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.2459","created_at":"2026-05-18T04:08:34Z"},{"alias_kind":"arxiv_version","alias_value":"1111.2459v1","created_at":"2026-05-18T04:08:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.2459","created_at":"2026-05-18T04:08:34Z"},{"alias_kind":"pith_short_12","alias_value":"UNZT2W2VTP6V","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UNZT2W2VTP6V356C","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UNZT2W2V","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:b1a7f528bb8fca9bf00480abe246bb4f4ca1ad6ce9a33feedb4c530135530cc6","target":"graph","created_at":"2026-05-18T04:08:34Z","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":"When combined with graphene, hexagonal boron nitride (h-BN) is an ideal substrate and gate dielectric with which to build metalh-BN|graphene field-effect devices. We use first-principles density functional theory (DFT) calculations for Cu|h-BN|graphene stacks to study how the graphene doping depends on the thickness of the h-BN layer and on a potential difference applied between Cu and graphene. We develop an analytical model that describes the doping very well, allowing us to identify the key parameters that govern the device behaviour. A predicted intrinsic doping of graphene is particularly","authors_text":"Geert Brocks, Menno Bokdam, Paul J. Kelly, Petr A. Khomyakov, Zhicheng Zhong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-10T12:30:22Z","title":"Electrostatic doping of graphene through ultrathin hexagonal boron nitride films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.2459","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:e46253978d0f99bed25f506659afbf465d58a62111837ad6c01bb60e959cd3b1","target":"record","created_at":"2026-05-18T04:08:34Z","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":"132f50ff2d32ba7379e9b7f2b01b2be1fb5266fe889cc5ed100cd110e304cf4e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-11-10T12:30:22Z","title_canon_sha256":"d22b71339f4a2db63fdeab9711272dc0158ea1dddb24cc286c7c974a000176a5"},"schema_version":"1.0","source":{"id":"1111.2459","kind":"arxiv","version":1}},"canonical_sha256":"a3733d5b559bfd5df7c21c0ee291dd5421570868b94d7838aee3a3eb0308c5fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3733d5b559bfd5df7c21c0ee291dd5421570868b94d7838aee3a3eb0308c5fd","first_computed_at":"2026-05-18T04:08:34.087979Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:08:34.087979Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oefBj3ZbxDzRIxx2FUHIC0y/1CZHFGFyPrn45SX31g0rJBStqsvasexcLZP92sRzVwPlOAw2z9i0dinNp0uMBA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:08:34.088565Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.2459","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e46253978d0f99bed25f506659afbf465d58a62111837ad6c01bb60e959cd3b1","sha256:b1a7f528bb8fca9bf00480abe246bb4f4ca1ad6ce9a33feedb4c530135530cc6"],"state_sha256":"d4f2994cec416b759e8aff4ec8ee1dbf9794cd8e8cb8d3378c4dfca293458225"}