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= 1.0) series

Title= 1.0) series
Publication TypeJournal Article
Year of Publication2013
AuthorsBud'ko, SL, Sturza, M, Chung, DY, Kanatzidis, MG, Canfield, PC
JournalPhysical Review B
Date Published03
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberWOS:000316664800001
Keywordsba0.6k0.4fe2as2, bafe2as2, state, unconventional superconductivity

We present the evolution of the initial (up to similar to 10 kbar) hydrostatic pressure dependencies of T-c and of the ambient pressure jump in the heat capacity associated with the superconducting transition as a function of K doping in the Ba1-xKxFe2As2 family of iron-based superconductors. The pressure derivatives show a weak but distinct anomaly near x similar to 0.7. In the same concentration region, Delta C-p vertical bar(Tc) deviates from the Delta C-p proportional to T-3 scaling found for most BaFe2As2-based superconductors. These results are consistent with a possible significant modification of the superconducting state, occurring near x similar to 0.7. DOI: 10.1103/PhysRevB.87.100509

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