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BaPt$_2$As$_2$ crystallizes in the CaBe$_2$Ge$_2$-type tetragonal structure (P4/nmm) at room temperature and undergoes a first-order structural transition at $T_S\\simeq 275$ K, which is likely associated with a charge-density-wave (CDW) instability. BCS-type superconductivity with two subsequent transitions at $T_{c1}=1.67$K and $T_{c2}$=1.33K are observed in this compound. Thus, BaPt$_2$As$_2$ may serve as a new system for studying the interplay of supercond"},"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":"1409.7859","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2014-09-28T01:18:58Z","cross_cats_sorted":[],"title_canon_sha256":"f7ed9115556d882598a6bc4acb4238e2758116a7b68157e72f8a6283495567f1","abstract_canon_sha256":"b6b5bf89d02c32a280605660cc352f9dd2a3338116100a50b5dd38c7de9b91ae"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:54.706723Z","signature_b64":"J370kxSo1Yr4ZzlE6I3eeELYzRnTjF+YuzkxiqR/KLH8v5WSkaZ69/XGmImp62iVsQxS7g9YGiTau0eydM2CBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efa811f10ee956453b8e6195da823507c0b3c6e2a366bd1d57a7806763fc4611","last_reissued_at":"2026-05-18T01:41:54.706080Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:54.706080Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Superconductivity and structural distortion in BaPt$_2$As$_2$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"C. 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