{"corpus_id":123497750,"paper_sha":"b968c5e059494e19f225dd4f2fe1e53cee68b671","doi":"10.1103/PHYSREVLETT.43.1892","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2993376864,"dblp_id":null,"acl_id":null,"title":"Superconductivity in the presence of strong Pauli paramagnetism : CeCu2Si2","year":1979,"publication_date":"1979-12-17","venue":"","journal":{"name":"Physical Review Letters","pages":"1892-1896","volume":"43"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Materials Science","Physics"],"reference_count":20,"citation_count":1435,"influential_citation_count":11,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":"https://scholarlypublications.universiteitleiden.nl/access/item%3A2911246/view","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/b968c5e059494e19f225dd4f2fe1e53cee68b671","s2_open_access_license":"other-oa","s2_open_access_status":"CLOSED","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"A comparison was made between four low-temperature properties of La${\\mathrm{Cu}}_{2}$${\\mathrm{Si}}_{2}$ and Ce${\\mathrm{Cu}}_{2}$${\\mathrm{Si}}_{2}$. Whereas La${\\mathrm{Cu}}_{2}$${\\mathrm{Si}}_{2}$ behaves like a normal metal, Ce${\\mathrm{Cu}}_{2}$${\\mathrm{Si}}_{2}$ shows (i) low-temperature anomalies typical of \"unstable $4f$ shell\" behavior and (ii) a transition into a superconducting state at ${T}_{c}\\ensuremath{\\simeq}0.5$ K. Our experiments demonstrate for the first time that superconductivity can exist in a metal in which many-body interactions, probably magnetic in origin, have strongly renormalized the properties of the conduction-electron gas.","claims":[{"public_id":"cl_8102237c639a3e8f8b54e72f42514071","status":"active","text":"CeCu2Si2 shows low-temperature anomalies typical of unstable 4f shell behavior and a transition into a superconducting state at Tc ≃ 0.5 K.","confidence":0.95,"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_8102237c639a3e8f8b54e72f42514071"},{"public_id":"cl_d3a030eb415ef446666b617964b6a49e","status":"active","text":"LaCu2Si2 behaves like a normal metal, while CeCu2Si2 exhibits both unstable 4f shell 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