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We present here the results of the first-principles calculations of the structural, elastic and electronic properties for this newest superconductor and discuss its behaviour in relation to other related systems.\n  Keywords: RbFe2As2, Electronic structure; Elastic constant; Superconductivity.\n  PACS: 74.70.Dd, 74.10.+v, 74.20.Pq, 75.25.Ld"},"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":"0911.2394","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2009-11-12T14:29:34Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"eeb703d1dc90197677e30935ebde3e085f2c8f25c27e49e2b50525f824cc8883","abstract_canon_sha256":"b6b6cadd088925cc2e522c0cd3742f2080ae92400f9de19d26dc3a6996a045f1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:48.287570Z","signature_b64":"EgevI0FVnqlWLKo62WWssABtP1AQkzpon7ycHpoouR85Lf1CMdBK+fbwhe/9Ow3X7Yt5G60gRC16ebNeomb0Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"75d4a582c02082ccf5f4ebefe8993e9756d39359d08b5aa94fffa69c209bd059","last_reissued_at":"2026-05-18T02:10:48.286934Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:48.286934Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"New Superconducting RbFe2As2: A First-principles Investigation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.supr-con","authors_text":"A.K.M.A. Islam, M. 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