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The $T_{\\rm c}$s are 6.1 K for LaPhenanthrene and 6.0 K for SmPhenanthrene, which are enhanced by about 1 K and 0.5 K compared to those in $A_3$Phenanthrene ($A$=K and Rb) and in $Ae_{1.5}$Phenanthrene ($Ae$ = Sr and Ba) superconductors respectively. The superconductive shielding fractions for LaPhenanthrene and SmPhenanthrene are 46.1%$ and 49.8$%$ at 2 K, respectively. The little effect of the doping of the magnetic ion Sm$^{3+}$ on $T_c$ and the positi"},"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":"1203.5887","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-03-27T07:47:37Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"2149598d9f88d71e809edc87417cebc6009eb682085db08c1502c579196cdd65","abstract_canon_sha256":"492a393a7dfb2a1bab64a91902a49543467f4c745403a929e59543a79db7e6fa"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:01.540397Z","signature_b64":"3df0f+VKfNy8lAObmDXVmB5AMdB1RxCW8w3IZHwnPZtq6KrfkgsfGJTDINrF+1/iTl7qePtvDt1ycRTbAbQOBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2cac6551b538dbcbe410ffcb59baf98630d8c1ff4469572d568d04455415b68","last_reissued_at":"2026-05-18T01:58:01.539901Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:01.539901Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Enhanced Superconductivity by Rare-earth Metal-doping in Phenanthrene","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. F. Wang, G. J. Ye, J. J. Ying, P. Cheng, R. R. Zhang, S. L. Zhang, X. F. Wang, X. G. Luo, X. H. Chen, Y. H. Zhang, Y. J. Yan, Z. J. Xiang","submitted_at":"2012-03-27T07:47:37Z","abstract_excerpt":"We successfully synthesized La- and Sm-doped phenanthrene powder samples and discovered superconductivity at $T_{\\rm c}$ around 6 K in them. The $T_{\\rm c}$s are 6.1 K for LaPhenanthrene and 6.0 K for SmPhenanthrene, which are enhanced by about 1 K and 0.5 K compared to those in $A_3$Phenanthrene ($A$=K and Rb) and in $Ae_{1.5}$Phenanthrene ($Ae$ = Sr and Ba) superconductors respectively. The superconductive shielding fractions for LaPhenanthrene and SmPhenanthrene are 46.1%$ and 49.8$%$ at 2 K, respectively. 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