{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:CEYXML3IN2U4C6LSTCJMK7QLRW","short_pith_number":"pith:CEYXML3I","schema_version":"1.0","canonical_sha256":"1131762f686ea9c179729892c57e0b8d986a7712e05b1b9dab18f534b123125b","source":{"kind":"arxiv","id":"0707.4653","version":1},"attestation_state":"computed","paper":{"title":"Correlation Effects in the Triangular Lattice Single-band System Li_xNbO_2","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"J. Kunes, K.-W. Lee, R. T. Scalettar, W. E. Pickett","submitted_at":"2007-07-31T17:00:46Z","abstract_excerpt":"Superconductivity in hole-doped Li_xNbO_2 has been reported with T_c ~ 5 K in the range 0.45 < x < 0.8. The electronic structure is based on a two-dimensional triangular Nb lattice. The strong trigonal crystal field results in a single Nb d(z^2) band isolated within a wide gap, leading to a single-band triangular lattice system. The isolated, partially filled band has a width W=1.5 eV with dominant second neighbor hopping. To identify possible correlation effects, we apply DMFT(QMC) using on-site Coulomb repulsion U=0-3 eV, and check selected results using determinant QMC. For U as small as 1 "},"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":"0707.4653","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.supr-con","submitted_at":"2007-07-31T17:00:46Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"c00e8b92059c8fde88487f294054f772d75824e776f760ac8605bda0b8e3b83b","abstract_canon_sha256":"1e315a5267a077701669b38131b166d041a7ec8381fc00b1a8925eb47c5bb834"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:15.278811Z","signature_b64":"cPbbxDW+kmwBQvUDDtpD4wdpcO1xlIKPODydZe/gM9mXxF6kzgdlX0dkkieS7zyiBHjJL/he5xHgGG75JrtuBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1131762f686ea9c179729892c57e0b8d986a7712e05b1b9dab18f534b123125b","last_reissued_at":"2026-05-18T04:09:15.278177Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:15.278177Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Correlation Effects in the Triangular Lattice Single-band System Li_xNbO_2","license":"","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"J. Kunes, K.-W. Lee, R. T. Scalettar, W. E. Pickett","submitted_at":"2007-07-31T17:00:46Z","abstract_excerpt":"Superconductivity in hole-doped Li_xNbO_2 has been reported with T_c ~ 5 K in the range 0.45 < x < 0.8. The electronic structure is based on a two-dimensional triangular Nb lattice. The strong trigonal crystal field results in a single Nb d(z^2) band isolated within a wide gap, leading to a single-band triangular lattice system. The isolated, partially filled band has a width W=1.5 eV with dominant second neighbor hopping. To identify possible correlation effects, we apply DMFT(QMC) using on-site Coulomb repulsion U=0-3 eV, and check selected results using determinant QMC. For U as small as 1 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0707.4653","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":"0707.4653","created_at":"2026-05-18T04:09:15.278259+00:00"},{"alias_kind":"arxiv_version","alias_value":"0707.4653v1","created_at":"2026-05-18T04:09:15.278259+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0707.4653","created_at":"2026-05-18T04:09:15.278259+00:00"},{"alias_kind":"pith_short_12","alias_value":"CEYXML3IN2U4","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_16","alias_value":"CEYXML3IN2U4C6LS","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_8","alias_value":"CEYXML3I","created_at":"2026-05-18T12:25:55.427421+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/CEYXML3IN2U4C6LSTCJMK7QLRW","json":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW.json","graph_json":"https://pith.science/api/pith-number/CEYXML3IN2U4C6LSTCJMK7QLRW/graph.json","events_json":"https://pith.science/api/pith-number/CEYXML3IN2U4C6LSTCJMK7QLRW/events.json","paper":"https://pith.science/paper/CEYXML3I"},"agent_actions":{"view_html":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW","download_json":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW.json","view_paper":"https://pith.science/paper/CEYXML3I","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0707.4653&json=true","fetch_graph":"https://pith.science/api/pith-number/CEYXML3IN2U4C6LSTCJMK7QLRW/graph.json","fetch_events":"https://pith.science/api/pith-number/CEYXML3IN2U4C6LSTCJMK7QLRW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW/action/storage_attestation","attest_author":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW/action/author_attestation","sign_citation":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW/action/citation_signature","submit_replication":"https://pith.science/pith/CEYXML3IN2U4C6LSTCJMK7QLRW/action/replication_record"}},"created_at":"2026-05-18T04:09:15.278259+00:00","updated_at":"2026-05-18T04:09:15.278259+00:00"}