{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:7NPVTGVEUUTP6LCZDWJIT7UB5U","short_pith_number":"pith:7NPVTGVE","schema_version":"1.0","canonical_sha256":"fb5f599aa4a526ff2c591d9289fe81ed1e153379f373f56114cf7197a0a7aa00","source":{"kind":"arxiv","id":"1311.4050","version":1},"attestation_state":"computed","paper":{"title":"Verification of Anisotropic s-Wave Superconducting Gap Structure in CeRu2 from Low-Temperature Field-Angle-Resolved Specific Heat Measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Kazushige Machida, Masato Hedo, Shunichiro Kittaka, Toshiro Sakakibara, Yoshichika Onuki","submitted_at":"2013-11-16T12:27:49Z","abstract_excerpt":"The field-angle-resolved specific heat C(T,H,phi) of the f-electron superconductor CeRu2 (Tc=6.3 K) has been measured at low temperatures down to 90 mK on two single crystals of slightly different qualities. We reveal that the C(phi) oscillation in a rotating magnetic field, originating from the gap anisotropy, diminishes at low temperatures below the characteristic field H*, as expected for an anisotropic gap without nodes. We also observe the suppression of H* by decreasing the gap anisotropy ratio $\\Delta_{\\rm min}/\\Delta_{\\rm max}$, a behavior that has been predicted from a microscopic the"},"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":"1311.4050","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2013-11-16T12:27:49Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"5364f0e12c85076af99b53b379d3cdc412bea3af06eb0b95a99bbfdbb0280e6d","abstract_canon_sha256":"c221b6470f4d637240bb0b235b4701d3ae3d4c01d604a7a03653dc8df4e4534e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:06:53.827589Z","signature_b64":"SDlVui4TOQIVitXqM2wWaO1moXomUxBjp7fMrP8rwmNgPMkbJiafsfpopI26StGTzpKMN6lgnmfeU3sbXTI0Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb5f599aa4a526ff2c591d9289fe81ed1e153379f373f56114cf7197a0a7aa00","last_reissued_at":"2026-05-18T03:06:53.826830Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:06:53.826830Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Verification of Anisotropic s-Wave Superconducting Gap Structure in CeRu2 from Low-Temperature Field-Angle-Resolved Specific Heat Measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Kazushige Machida, Masato Hedo, Shunichiro Kittaka, Toshiro Sakakibara, Yoshichika Onuki","submitted_at":"2013-11-16T12:27:49Z","abstract_excerpt":"The field-angle-resolved specific heat C(T,H,phi) of the f-electron superconductor CeRu2 (Tc=6.3 K) has been measured at low temperatures down to 90 mK on two single crystals of slightly different qualities. We reveal that the C(phi) oscillation in a rotating magnetic field, originating from the gap anisotropy, diminishes at low temperatures below the characteristic field H*, as expected for an anisotropic gap without nodes. We also observe the suppression of H* by decreasing the gap anisotropy ratio $\\Delta_{\\rm min}/\\Delta_{\\rm max}$, a behavior that has been predicted from a microscopic the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.4050","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":"1311.4050","created_at":"2026-05-18T03:06:53.826959+00:00"},{"alias_kind":"arxiv_version","alias_value":"1311.4050v1","created_at":"2026-05-18T03:06:53.826959+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.4050","created_at":"2026-05-18T03:06:53.826959+00:00"},{"alias_kind":"pith_short_12","alias_value":"7NPVTGVEUUTP","created_at":"2026-05-18T12:27:36.564083+00:00"},{"alias_kind":"pith_short_16","alias_value":"7NPVTGVEUUTP6LCZ","created_at":"2026-05-18T12:27:36.564083+00:00"},{"alias_kind":"pith_short_8","alias_value":"7NPVTGVE","created_at":"2026-05-18T12:27:36.564083+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/7NPVTGVEUUTP6LCZDWJIT7UB5U","json":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U.json","graph_json":"https://pith.science/api/pith-number/7NPVTGVEUUTP6LCZDWJIT7UB5U/graph.json","events_json":"https://pith.science/api/pith-number/7NPVTGVEUUTP6LCZDWJIT7UB5U/events.json","paper":"https://pith.science/paper/7NPVTGVE"},"agent_actions":{"view_html":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U","download_json":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U.json","view_paper":"https://pith.science/paper/7NPVTGVE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1311.4050&json=true","fetch_graph":"https://pith.science/api/pith-number/7NPVTGVEUUTP6LCZDWJIT7UB5U/graph.json","fetch_events":"https://pith.science/api/pith-number/7NPVTGVEUUTP6LCZDWJIT7UB5U/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U/action/storage_attestation","attest_author":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U/action/author_attestation","sign_citation":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U/action/citation_signature","submit_replication":"https://pith.science/pith/7NPVTGVEUUTP6LCZDWJIT7UB5U/action/replication_record"}},"created_at":"2026-05-18T03:06:53.826959+00:00","updated_at":"2026-05-18T03:06:53.826959+00:00"}