{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:GIM32IRKTEGZUVSPGP2OZ6JSWS","short_pith_number":"pith:GIM32IRK","schema_version":"1.0","canonical_sha256":"3219bd222a990d9a564f33f4ecf932b49d052e5a30007a428084960ce4426aac","source":{"kind":"arxiv","id":"1909.02397","version":1},"attestation_state":"computed","paper":{"title":"Defect physics in $Yb^{3+}$-doped $CaF_2$ from first-principles calculation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chol-Jun Yu, Chol-Nam Sin, Un-Gi Jong, Weiping Qin, Yun-Hyok Kye","submitted_at":"2019-08-23T07:18:20Z","abstract_excerpt":"Calcium fluoride has been widely used for light up-/down-conversion luminescence by accommodating lanthanide ions as sensitizers or activators. Especially, Yb-doped \\ce{CaF2} exhibits unique defect physics, causing various effects on the luminescence. This makes it vital for high efficiency of devices to control the defect-clustering, but theoretically principal guidelines for this are rarely provided. Here we perform the first-principles study on defect physics in Yb-doped \\ce{CaF2} to reveal the thermodynamic transition levels and formation energies of possible defects. We suggest that the f"},"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":"1909.02397","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2019-08-23T07:18:20Z","cross_cats_sorted":[],"title_canon_sha256":"5ea504e1ababfa2d87e7f6a876d7655a758a052c5f3351875e97df57dcb7670e","abstract_canon_sha256":"cb8e91094195d2ef3e054f9846674cb539974251611e217a83c9a5a578b9e01f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:02:33.820436Z","signature_b64":"7T78NyBZl66efzZHuCJi463feBovjw2ILb8mCDiOidcDVpMK0ux5LTDjSqihR5dd8RdT0W5XFW7Ef5rVHsgHCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3219bd222a990d9a564f33f4ecf932b49d052e5a30007a428084960ce4426aac","last_reissued_at":"2026-07-05T00:02:33.820065Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:02:33.820065Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Defect physics in $Yb^{3+}$-doped $CaF_2$ from first-principles calculation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chol-Jun Yu, Chol-Nam Sin, Un-Gi Jong, Weiping Qin, Yun-Hyok Kye","submitted_at":"2019-08-23T07:18:20Z","abstract_excerpt":"Calcium fluoride has been widely used for light up-/down-conversion luminescence by accommodating lanthanide ions as sensitizers or activators. Especially, Yb-doped \\ce{CaF2} exhibits unique defect physics, causing various effects on the luminescence. This makes it vital for high efficiency of devices to control the defect-clustering, but theoretically principal guidelines for this are rarely provided. Here we perform the first-principles study on defect physics in Yb-doped \\ce{CaF2} to reveal the thermodynamic transition levels and formation energies of possible defects. We suggest that the f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.02397","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1909.02397/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1909.02397","created_at":"2026-07-05T00:02:33.820127+00:00"},{"alias_kind":"arxiv_version","alias_value":"1909.02397v1","created_at":"2026-07-05T00:02:33.820127+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.02397","created_at":"2026-07-05T00:02:33.820127+00:00"},{"alias_kind":"pith_short_12","alias_value":"GIM32IRKTEGZ","created_at":"2026-07-05T00:02:33.820127+00:00"},{"alias_kind":"pith_short_16","alias_value":"GIM32IRKTEGZUVSP","created_at":"2026-07-05T00:02:33.820127+00:00"},{"alias_kind":"pith_short_8","alias_value":"GIM32IRK","created_at":"2026-07-05T00:02:33.820127+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/GIM32IRKTEGZUVSPGP2OZ6JSWS","json":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS.json","graph_json":"https://pith.science/api/pith-number/GIM32IRKTEGZUVSPGP2OZ6JSWS/graph.json","events_json":"https://pith.science/api/pith-number/GIM32IRKTEGZUVSPGP2OZ6JSWS/events.json","paper":"https://pith.science/paper/GIM32IRK"},"agent_actions":{"view_html":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS","download_json":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS.json","view_paper":"https://pith.science/paper/GIM32IRK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1909.02397&json=true","fetch_graph":"https://pith.science/api/pith-number/GIM32IRKTEGZUVSPGP2OZ6JSWS/graph.json","fetch_events":"https://pith.science/api/pith-number/GIM32IRKTEGZUVSPGP2OZ6JSWS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS/action/storage_attestation","attest_author":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS/action/author_attestation","sign_citation":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS/action/citation_signature","submit_replication":"https://pith.science/pith/GIM32IRKTEGZUVSPGP2OZ6JSWS/action/replication_record"}},"created_at":"2026-07-05T00:02:33.820127+00:00","updated_at":"2026-07-05T00:02:33.820127+00:00"}