Interlayer Coherence and Superconducting Condensate in the c-Axis Response of Optimally Doped Ba(Fe1-xCox)(2)As-2 High-T-c Superconductor Using Infrared Spectroscopy

TitleInterlayer Coherence and Superconducting Condensate in the c-Axis Response of Optimally Doped Ba(Fe1-xCox)(2)As-2 High-T-c Superconductor Using Infrared Spectroscopy
Publication TypeJournal Article
Year of Publication2013
AuthorsMoon SJ, Schafgans AA, Tanatar MA, Prozorov R, Thaler A, Canfield PC, Sefat AS, Mandrus D, Basov DN
Journal TitlePhysical Review Letters
Volume110
Pages097003
Date Published02
Type of ArticleArticle
ISBN Number0031-9007
Accession NumberWOS:000315381500014
Keywordselectrodynamics, optical conductivity
Abstract

We report on the infrared studies of the interlayer charge dynamics of a prototypical pnictide superconductor Ba(Fe0.926Co0.074)(2)As-2. We succeeded in probing the intrinsic interlayer response by performing infrared experiments on the crystals with a cleaved ac surface. Our experiments identify the coexistence of the suppression of the electronic spectral weight and the development of a coherent Drude-like response in the normal state. The formation of the interlayer condensate is clearly observed in the superconducting state and appears to be linked to coherent contribution to the normal-state conductivity. DOI: 10.1103/PhysRevLett.110.097003

URL<Go to ISI>://WOS:000315381500014
DOI10.1103/PhysRevLett.110.097003