{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:GDG65YZFTSF6E2Z7O2CWIAUWHG","short_pith_number":"pith:GDG65YZF","schema_version":"1.0","canonical_sha256":"30cdeee3259c8be26b3f768564029639b7d98a7a39bfbd7a79a2815b39e46ea8","source":{"kind":"arxiv","id":"1104.5645","version":1},"attestation_state":"computed","paper":{"title":"Andreev-reflection spectroscopy of ferromagnets: the impact of Fermi surface mismatch","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Elina Tuuli, Kurt Gloos","submitted_at":"2011-04-29T15:01:58Z","abstract_excerpt":"We have investigated point contacts between a superconductor (Nb, AuIn2) and a normal metal (ferromagnetic Co, non-magnetic Cu). The observed Andreev-reflection spectra were analyzed using the modified BTK theory including spin-polarization effects. This resulted in a polarization of Co that agrees with observations by others, but lifetime effects describe the spectra equally well. On the other hand, the spectra with non-magnetic Cu can be well described using the spin-polarization model. The ambiguity between polarization and lifetime interpretation poses a dilemma which can be resolved by co"},"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":"1104.5645","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2011-04-29T15:01:58Z","cross_cats_sorted":[],"title_canon_sha256":"ad5dcd6c7c661224346cf96189ddd2baea4212067c2f2512a66c29c2feb6ac4b","abstract_canon_sha256":"981198e3b38f1b0724d282a73300acf4c3cdb599182173f3d69bed1f9d40ee1c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:12.885501Z","signature_b64":"xcOh/yyjh0uKJpke2pqCi8u0KqdokfFh5kU5MMOB1Tx1pRcXY0KcrJejqmcGDUr685SOvnFC/11ut2IhM3z7Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30cdeee3259c8be26b3f768564029639b7d98a7a39bfbd7a79a2815b39e46ea8","last_reissued_at":"2026-05-18T02:02:12.884719Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:12.884719Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Andreev-reflection spectroscopy of ferromagnets: the impact of Fermi surface mismatch","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Elina Tuuli, Kurt Gloos","submitted_at":"2011-04-29T15:01:58Z","abstract_excerpt":"We have investigated point contacts between a superconductor (Nb, AuIn2) and a normal metal (ferromagnetic Co, non-magnetic Cu). The observed Andreev-reflection spectra were analyzed using the modified BTK theory including spin-polarization effects. This resulted in a polarization of Co that agrees with observations by others, but lifetime effects describe the spectra equally well. On the other hand, the spectra with non-magnetic Cu can be well described using the spin-polarization model. The ambiguity between polarization and lifetime interpretation poses a dilemma which can be resolved by co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.5645","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":"1104.5645","created_at":"2026-05-18T02:02:12.884856+00:00"},{"alias_kind":"arxiv_version","alias_value":"1104.5645v1","created_at":"2026-05-18T02:02:12.884856+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.5645","created_at":"2026-05-18T02:02:12.884856+00:00"},{"alias_kind":"pith_short_12","alias_value":"GDG65YZFTSF6","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_16","alias_value":"GDG65YZFTSF6E2Z7","created_at":"2026-05-18T12:26:28.662955+00:00"},{"alias_kind":"pith_short_8","alias_value":"GDG65YZF","created_at":"2026-05-18T12:26:28.662955+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/GDG65YZFTSF6E2Z7O2CWIAUWHG","json":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG.json","graph_json":"https://pith.science/api/pith-number/GDG65YZFTSF6E2Z7O2CWIAUWHG/graph.json","events_json":"https://pith.science/api/pith-number/GDG65YZFTSF6E2Z7O2CWIAUWHG/events.json","paper":"https://pith.science/paper/GDG65YZF"},"agent_actions":{"view_html":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG","download_json":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG.json","view_paper":"https://pith.science/paper/GDG65YZF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1104.5645&json=true","fetch_graph":"https://pith.science/api/pith-number/GDG65YZFTSF6E2Z7O2CWIAUWHG/graph.json","fetch_events":"https://pith.science/api/pith-number/GDG65YZFTSF6E2Z7O2CWIAUWHG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG/action/storage_attestation","attest_author":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG/action/author_attestation","sign_citation":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG/action/citation_signature","submit_replication":"https://pith.science/pith/GDG65YZFTSF6E2Z7O2CWIAUWHG/action/replication_record"}},"created_at":"2026-05-18T02:02:12.884856+00:00","updated_at":"2026-05-18T02:02:12.884856+00:00"}