Fully gapped superconductivity with no sign change in the prototypical heavy-fermion CeCu2Si2.
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Sci Adv. 2017 Jun 23;3(6):e1601667. doi: 10.1126/sciadv.1601667. eCollection 2017 Jun.
Sci Adv. 2017.
PMID: 28691082
Free PMC article.