{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PFL4PTY2G4FMOMIKA4HUN56EOW","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":"b6f023aaf4f3ce372159e6c5674c88d44b95676a2715fb12187bee5477400e6e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-21T02:00:20Z","title_canon_sha256":"f25c071c5edd879dcbda47ecf9249e6738d68ec931ad3878d027760adb170bec"},"schema_version":"1.0","source":{"id":"1302.5157","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1302.5157","created_at":"2026-05-18T03:32:59Z"},{"alias_kind":"arxiv_version","alias_value":"1302.5157v1","created_at":"2026-05-18T03:32:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1302.5157","created_at":"2026-05-18T03:32:59Z"},{"alias_kind":"pith_short_12","alias_value":"PFL4PTY2G4FM","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_16","alias_value":"PFL4PTY2G4FMOMIK","created_at":"2026-05-18T12:27:54Z"},{"alias_kind":"pith_short_8","alias_value":"PFL4PTY2","created_at":"2026-05-18T12:27:54Z"}],"graph_snapshots":[{"event_id":"sha256:9cd9d8f88d0ef38a4729f370131cfd7d17520839e1458ed6845d7e8e776dbaca","target":"graph","created_at":"2026-05-18T03:32:59Z","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":"Stability and electronic properties of atomic layers of GaN are investigated in the framework of the van der Waals-density functional theory. We find that the ground state of the layered GaN is a planar graphene-like configuration rather than a buckled bulk-like configuration. Application of an external perpendicular electric field to the layered GaN induces distinct stacking-dependent features of the tunability of the band gap; the band gap of the monolayer does not change whereas that of the trilayer GaN is significantly reduced for the applied field of 0.4 V/ {\\AA}. It is suggested that suc","authors_text":"Dongwei Xu, Haiying He, Ravindra Pandey, Shashi P. Karna","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-21T02:00:20Z","title":"Stacking and electric field effects on the electronic properties of the layered GaN"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1302.5157","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":"sha256:40c9c074f0a30ae537ab8ddca7afa8f2cf630ac8e93cb71a8e25238940f2c99d","target":"record","created_at":"2026-05-18T03:32:59Z","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":"b6f023aaf4f3ce372159e6c5674c88d44b95676a2715fb12187bee5477400e6e","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2013-02-21T02:00:20Z","title_canon_sha256":"f25c071c5edd879dcbda47ecf9249e6738d68ec931ad3878d027760adb170bec"},"schema_version":"1.0","source":{"id":"1302.5157","kind":"arxiv","version":1}},"canonical_sha256":"7957c7cf1a370ac7310a070f46f7c4758b4ce7f63b4aec7e713d8740208514a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7957c7cf1a370ac7310a070f46f7c4758b4ce7f63b4aec7e713d8740208514a1","first_computed_at":"2026-05-18T03:32:59.539760Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:32:59.539760Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"stDho66h8dgzUbyN/JuQAICQEw00psQJPJRc73S9dnwsDi/M3YlYKrbbAbh18s3mzri8HthkN/cOeG9qDxWMAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:32:59.540507Z","signed_message":"canonical_sha256_bytes"},"source_id":"1302.5157","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40c9c074f0a30ae537ab8ddca7afa8f2cf630ac8e93cb71a8e25238940f2c99d","sha256:9cd9d8f88d0ef38a4729f370131cfd7d17520839e1458ed6845d7e8e776dbaca"],"state_sha256":"f7062dbaa0a84d3ab3583a1623f256493b2ac040dd5e335b55edd473931ac58b"}