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Al-42622(Pn) exhibit superconductivity for both Pn = As and P with the transition temperatures of 28.3 K and 17.1 K, respectively. The a-lattice parameters of Al-42622(Pn) (a = 3.713 {\\AA} and 3.692 {\\AA} for Pn = As and P, respectively) are smallest among the iron-pnictide superconductors. Correspondingly, Al-42622(As) has the smallest As-Fe-As bond angle (102.1 {\\deg}) and the largest As distance from the Fe planes (1.500 {\\AA})."},"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":"1008.2586","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2010-08-16T07:46:43Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"1459d18cd34539ca7d8852e94d32f442fea65840b4c4e4babd3e35b105ab6027","abstract_canon_sha256":"e98c6c2b5cd14349b9ce087d2378f2f72150bf7e74325ace2112536f8b6693e2"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:37:10.073008Z","signature_b64":"DLr8AGqGXIIQes4q5sgOiSOtI0W56uR3oBRzSM6koU6LtIxaF2o4o+G9NS41L+tITzEe1a6B6tIvej04zkN+Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1221b67bb2399fab86781aeebc44b5a7fe05bb8c3fc50861c5266aff6805360","last_reissued_at":"2026-05-18T04:37:10.072540Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:37:10.072540Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Superconductivity at 28.3 and 17.1 K in (Ca4Al2O6-y)(Fe2Pn2) (Pn = As and P)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"Akira Iyo, Chul-Ho Lee, Hijiri Kito, Hiroshi Eisaki, Kunihiro Kihou, Parasharam M. 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