{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:HEPJGGCDMJRTPBAUURB7OLPXUM","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":"a26142649d24675c155491af91bc82bfc054f0ca930b4302a0f4c4d0e604ec34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-05-06T17:45:10Z","title_canon_sha256":"0ba5bcb65c3a632038acdede43857132749befca778d54a0dcf87d43159eb81c"},"schema_version":"1.0","source":{"id":"1105.1339","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.1339","created_at":"2026-05-18T04:07:32Z"},{"alias_kind":"arxiv_version","alias_value":"1105.1339v1","created_at":"2026-05-18T04:07:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.1339","created_at":"2026-05-18T04:07:32Z"},{"alias_kind":"pith_short_12","alias_value":"HEPJGGCDMJRT","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"HEPJGGCDMJRTPBAU","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"HEPJGGCD","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:226f1672c4e5e4be323173ce125e37acdc42be045fafa11cee91264bf28f57fd","target":"graph","created_at":"2026-05-18T04:07:32Z","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 calculate the thermoelectric figure of merit, zT=S^2GT/(\\kappa_l+\\kappa_e), for p-type Si nanowires with axial Ge heterostructures using a combination of first-principles density-functional theory, interatomic potentials, and Landauer-Buttiker transport theory. We consider nanowires with up to 8400 atoms and twelve Ge axial heterostructures along their length. We find that introducing heterostructures always reduces S^2G, and that our calculated increases in zT are predominantly driven by associated decreases in \\kappa_l. Of the systems considered, <111> nanowires with a regular distributio","authors_text":"Arash A. Mostofi, Matthew Shelley","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-05-06T17:45:10Z","title":"Prediction of high zT in thermoelectric silicon nanowires with axial germanium heterostructures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.1339","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":"sha256:5cd7734e971754c8c8bdaedeb0df909b43e51d6aee64ab4ca357df4f4fb9e3f5","target":"record","created_at":"2026-05-18T04:07:32Z","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":"a26142649d24675c155491af91bc82bfc054f0ca930b4302a0f4c4d0e604ec34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-05-06T17:45:10Z","title_canon_sha256":"0ba5bcb65c3a632038acdede43857132749befca778d54a0dcf87d43159eb81c"},"schema_version":"1.0","source":{"id":"1105.1339","kind":"arxiv","version":1}},"canonical_sha256":"391e9318436263378414a443f72df7a32e18b637674f26dabaf1b68a255ea376","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"391e9318436263378414a443f72df7a32e18b637674f26dabaf1b68a255ea376","first_computed_at":"2026-05-18T04:07:32.296156Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:32.296156Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jWW5GN1BQeFHKCr7zgOZfiXI7b65AyovKtf1hZRCvIA/1DtXaGIpioXpVQKzuD+k0adCbnNh6Y7RRmdaLaCKAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:32.298369Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.1339","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5cd7734e971754c8c8bdaedeb0df909b43e51d6aee64ab4ca357df4f4fb9e3f5","sha256:226f1672c4e5e4be323173ce125e37acdc42be045fafa11cee91264bf28f57fd"],"state_sha256":"dae9518bc31fce538ad84cda58856d4a08f7a94f49af8575a5567d81609545b5"}