{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:TBUNYCDXQZBJ6MAF5TEREGYTSK","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":"772831f94baffc723455f2a7f1e27f7e7d79618ed69ad780f2ed88e84cf36f98","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.comp-ph","submitted_at":"2010-10-07T21:39:00Z","title_canon_sha256":"10ea6896b0f3e98adab3eabfde982d5bdae60cc6eb94d00cdf8cb9f709d2adc2"},"schema_version":"1.0","source":{"id":"1010.1553","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.1553","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"arxiv_version","alias_value":"1010.1553v1","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.1553","created_at":"2026-05-18T02:05:07Z"},{"alias_kind":"pith_short_12","alias_value":"TBUNYCDXQZBJ","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"TBUNYCDXQZBJ6MAF","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"TBUNYCDX","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:3a514ff1d9bf02fd06f0875827f04bac3641b421082caa74a5ce31749606b866","target":"graph","created_at":"2026-05-18T02:05:07Z","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":"We used density-functional theory based first principles simulations to study the effects of uniaxial strain and quantum confinement on the electronic properties of germanium nanowires along the [110] direction, such as the energy gap and the effective masses of the electron and hole. The diameters of the nanowires being studied are up to 50 {\\AA}. As shown in our calculations, the Ge [110] nanowires possess a direct band gap, in contrast to the nature of an indirect band gap in bulk. We discovered that the band gap and the effective masses of charge carries can be modulated by applying uniaxi","authors_text":"Paul Logan, Xihong Peng","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.comp-ph","submitted_at":"2010-10-07T21:39:00Z","title":"Strain Modulated Electronic Properties of Ge Nanowires - A First Principles Study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.1553","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":"sha256:7ec52c840d7998ddad5bc9e2c32daee3197920a176a98f65fc8e6040932ad411","target":"record","created_at":"2026-05-18T02:05:07Z","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":"772831f94baffc723455f2a7f1e27f7e7d79618ed69ad780f2ed88e84cf36f98","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.comp-ph","submitted_at":"2010-10-07T21:39:00Z","title_canon_sha256":"10ea6896b0f3e98adab3eabfde982d5bdae60cc6eb94d00cdf8cb9f709d2adc2"},"schema_version":"1.0","source":{"id":"1010.1553","kind":"arxiv","version":1}},"canonical_sha256":"9868dc087786429f3005ecc9121b1392a1357710cb1a80ffb6f24fdd38b360ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9868dc087786429f3005ecc9121b1392a1357710cb1a80ffb6f24fdd38b360ff","first_computed_at":"2026-05-18T02:05:07.866359Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:07.866359Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s2OpX5V/bwTZKKqx3x69oYpMGVTdewktMEOeDYrdrSibbiUGgOuuJvQWZVKiLPsBl2dqqNFxK6C/pZI6TmJfDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:07.866939Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.1553","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ec52c840d7998ddad5bc9e2c32daee3197920a176a98f65fc8e6040932ad411","sha256:3a514ff1d9bf02fd06f0875827f04bac3641b421082caa74a5ce31749606b866"],"state_sha256":"12fac8ff5d100a95701a60ed776dcaf845b0082fdcf19338fd8d47c636e41cf2"}