Campus Units

Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

3-1-2013

Journal or Book Title

Physical Review Letters

Volume

110

Issue

9

First Page

097003

DOI

10.1103/PhysRevLett.110.097003

Abstract

We report on the infrared studies of the interlayer charge dynamics of a prototypical pnictide superconductor Ba(Fe0.926Co0.074)2As2. 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.

Comments

This article is published as Moon, S. J., A. A. Schafgans, M. A. Tanatar, R. Prozorov, A. Thaler, P. C. Canfield, A. S. Sefat, D. Mandrus, and D. N. Basov. "Interlayer Coherence and Superconducting Condensate in the c-Axis Response of Optimally Doped Ba (Fe 1− x Co x) 2 As 2 High-T c Superconductor Using Infrared Spectroscopy." Physical Review Letters 110, no. 9 (2013): 097003. DOI: 10.1103/PhysRevLett.110.097003. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Included in

Physics Commons

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