{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2009:NU3MS5SKCK7U7U2LJ33KHC7ZCP","short_pith_number":"pith:NU3MS5SK","schema_version":"1.0","canonical_sha256":"6d36c9764a12bf4fd34b4ef6a38bf913e1c222e1e85875be0e755f63c48e4b12","source":{"kind":"arxiv","id":"0907.5087","version":1},"attestation_state":"computed","paper":{"title":"Experimental band structure of the nearly half-metallic CuCr$_2$Se$_4$: An optical and magneto-optical study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"I. K\\'ezsm\\'arki, K. Ohgushi, S. Bord\\'acs, Y. Tokura","submitted_at":"2009-07-29T10:04:14Z","abstract_excerpt":"Diagonal and off-diagonal optical conductivity spectra have been determined form the measured reflectivity and magneto-optical Kerr effect (MOKE) over a broad range of photon energy in the itinerant ferromagnetic phase of CuCr$_2$Se$_4$ at various temperatures down to T=10 K. Besides the low-energy metallic contribution and the lower-lying charge transfer transition at $E$$\\approx$2 eV, a sharp and distinct optical transition was observed in the mid-infrared region around $E$$=$0.5 eV with huge magneto-optical activity. This excitation is attributed to a parity allowed transition through the S"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"0907.5087","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2009-07-29T10:04:14Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"d6a9106fc211231447ff123fae6e8290ce96d8107445f56aaf9b4866b45d24f1","abstract_canon_sha256":"1e136a292c0b563c64cfed3cfb7efbdd9a0ef4cfd3fe2a5cf4d88fc92c82eb43"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:46.653067Z","signature_b64":"R0Ss/a1UR5zEzQT38SN6aFBL3YKXmG+MR1Oj4WBwolrMTHvzd8A4dEZbGsddD9tAC1+EP62/8Snf2kIrqTTkBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d36c9764a12bf4fd34b4ef6a38bf913e1c222e1e85875be0e755f63c48e4b12","last_reissued_at":"2026-05-18T02:12:46.652244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:46.652244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Experimental band structure of the nearly half-metallic CuCr$_2$Se$_4$: An optical and magneto-optical study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"I. K\\'ezsm\\'arki, K. Ohgushi, S. Bord\\'acs, Y. Tokura","submitted_at":"2009-07-29T10:04:14Z","abstract_excerpt":"Diagonal and off-diagonal optical conductivity spectra have been determined form the measured reflectivity and magneto-optical Kerr effect (MOKE) over a broad range of photon energy in the itinerant ferromagnetic phase of CuCr$_2$Se$_4$ at various temperatures down to T=10 K. Besides the low-energy metallic contribution and the lower-lying charge transfer transition at $E$$\\approx$2 eV, a sharp and distinct optical transition was observed in the mid-infrared region around $E$$=$0.5 eV with huge magneto-optical activity. This excitation is attributed to a parity allowed transition through the S"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0907.5087","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":"0907.5087","created_at":"2026-05-18T02:12:46.652366+00:00"},{"alias_kind":"arxiv_version","alias_value":"0907.5087v1","created_at":"2026-05-18T02:12:46.652366+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0907.5087","created_at":"2026-05-18T02:12:46.652366+00:00"},{"alias_kind":"pith_short_12","alias_value":"NU3MS5SKCK7U","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_16","alias_value":"NU3MS5SKCK7U7U2L","created_at":"2026-05-18T12:26:00.592388+00:00"},{"alias_kind":"pith_short_8","alias_value":"NU3MS5SK","created_at":"2026-05-18T12:26:00.592388+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/NU3MS5SKCK7U7U2LJ33KHC7ZCP","json":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP.json","graph_json":"https://pith.science/api/pith-number/NU3MS5SKCK7U7U2LJ33KHC7ZCP/graph.json","events_json":"https://pith.science/api/pith-number/NU3MS5SKCK7U7U2LJ33KHC7ZCP/events.json","paper":"https://pith.science/paper/NU3MS5SK"},"agent_actions":{"view_html":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP","download_json":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP.json","view_paper":"https://pith.science/paper/NU3MS5SK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=0907.5087&json=true","fetch_graph":"https://pith.science/api/pith-number/NU3MS5SKCK7U7U2LJ33KHC7ZCP/graph.json","fetch_events":"https://pith.science/api/pith-number/NU3MS5SKCK7U7U2LJ33KHC7ZCP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP/action/storage_attestation","attest_author":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP/action/author_attestation","sign_citation":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP/action/citation_signature","submit_replication":"https://pith.science/pith/NU3MS5SKCK7U7U2LJ33KHC7ZCP/action/replication_record"}},"created_at":"2026-05-18T02:12:46.652366+00:00","updated_at":"2026-05-18T02:12:46.652366+00:00"}