{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:TPH34C3QSZCIYU3W6N2JZKII66","short_pith_number":"pith:TPH34C3Q","schema_version":"1.0","canonical_sha256":"9bcfbe0b7096448c5376f3749ca908f796255b440b97e187738af03d374c95a5","source":{"kind":"arxiv","id":"1406.5571","version":1},"attestation_state":"computed","paper":{"title":"Observation of an intrinsic bandgap and Landau level renormalization in graphene/boron-nitride heterostructures","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Feng Wang, Guangyu Zhang, Hugen Yan, Wei Yang, Xiaobo Lu, You Lai, Zhi-Guo Chen, Zhiqiang Li, Zhiwen Shi","submitted_at":"2014-06-21T02:44:22Z","abstract_excerpt":"Van der Waals heterostructures formed by assembling different two-dimensional atomic crystals into stacks can lead to many new phenomena and device functionalities. In particular, graphene/boron-nitride heterostructures have emerged as a very promising system for band engineering of graphene. However, the intrinsic value and origin of the bandgap in such heterostructures remain unresolved. Here we report the observation of an intrinsic bandgap in epitaxial graphene/boron-nitride heterostructures with zero crystallographic alignment angle. Magneto-optical spectroscopy provides a direct probe of"},"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":"1406.5571","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-06-21T02:44:22Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"917808d3220a422869aec14cfa41912799925b7faec6eeac66107327c378a8ce","abstract_canon_sha256":"c328fc4a40c852540fbf5412743e410a0c7ca8548f0a46a9e32b32c40b31b6ac"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:47:15.181601Z","signature_b64":"B77SVnDHvTP00PSPrbJy5UxrrCIp4jxT5RIRQcSCgH8+BXdqMmEhnkHsSKqsvlrL7cdB05zq+3i/BTJ9G5x6Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bcfbe0b7096448c5376f3749ca908f796255b440b97e187738af03d374c95a5","last_reissued_at":"2026-05-18T02:47:15.181141Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:47:15.181141Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of an intrinsic bandgap and Landau level renormalization in graphene/boron-nitride heterostructures","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.mes-hall","authors_text":"Feng Wang, Guangyu Zhang, Hugen Yan, Wei Yang, Xiaobo Lu, You Lai, Zhi-Guo Chen, Zhiqiang Li, Zhiwen Shi","submitted_at":"2014-06-21T02:44:22Z","abstract_excerpt":"Van der Waals heterostructures formed by assembling different two-dimensional atomic crystals into stacks can lead to many new phenomena and device functionalities. In particular, graphene/boron-nitride heterostructures have emerged as a very promising system for band engineering of graphene. However, the intrinsic value and origin of the bandgap in such heterostructures remain unresolved. Here we report the observation of an intrinsic bandgap in epitaxial graphene/boron-nitride heterostructures with zero crystallographic alignment angle. Magneto-optical spectroscopy provides a direct probe of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.5571","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":"1406.5571","created_at":"2026-05-18T02:47:15.181206+00:00"},{"alias_kind":"arxiv_version","alias_value":"1406.5571v1","created_at":"2026-05-18T02:47:15.181206+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.5571","created_at":"2026-05-18T02:47:15.181206+00:00"},{"alias_kind":"pith_short_12","alias_value":"TPH34C3QSZCI","created_at":"2026-05-18T12:28:49.207871+00:00"},{"alias_kind":"pith_short_16","alias_value":"TPH34C3QSZCIYU3W","created_at":"2026-05-18T12:28:49.207871+00:00"},{"alias_kind":"pith_short_8","alias_value":"TPH34C3Q","created_at":"2026-05-18T12:28:49.207871+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/TPH34C3QSZCIYU3W6N2JZKII66","json":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66.json","graph_json":"https://pith.science/api/pith-number/TPH34C3QSZCIYU3W6N2JZKII66/graph.json","events_json":"https://pith.science/api/pith-number/TPH34C3QSZCIYU3W6N2JZKII66/events.json","paper":"https://pith.science/paper/TPH34C3Q"},"agent_actions":{"view_html":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66","download_json":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66.json","view_paper":"https://pith.science/paper/TPH34C3Q","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1406.5571&json=true","fetch_graph":"https://pith.science/api/pith-number/TPH34C3QSZCIYU3W6N2JZKII66/graph.json","fetch_events":"https://pith.science/api/pith-number/TPH34C3QSZCIYU3W6N2JZKII66/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66/action/storage_attestation","attest_author":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66/action/author_attestation","sign_citation":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66/action/citation_signature","submit_replication":"https://pith.science/pith/TPH34C3QSZCIYU3W6N2JZKII66/action/replication_record"}},"created_at":"2026-05-18T02:47:15.181206+00:00","updated_at":"2026-05-18T02:47:15.181206+00:00"}