Search

Your search keyword '"Sun, D.L."' showing total 1 results
Start Over Author "Sun, D.L." Language undetermined
1 results on '"Sun, D.L."'

1. Eliashberg approach to infrared anomalies induced by the superconducting state of Ba(0.68)K(0.32)Fe(2)As(2) single crystals

Author

Charnukha, A., Dolgov, O.V., Golubov, Alexandre Avraamovitch, Matiks, Y., Sun, D.L., Lin, C.T., Keimer, B., Boris, A.V., Interfaces and Correlated Electron Systems, and Faculty of Science and Technology

Subjects
METIS-283379, Condensed Matter::Superconductivity, IR-104469
Abstract

We report the full complex dielectric function of high-purity Ba0.68K0.32Fe2As2 single crystals with Tc=38.5K determined by wideband spectroscopic ellipsometry at temperatures 10≤T≤300K. We discuss the microscopic origin of superconductivity-induced infrared optical anomalies in the framework of a multiband Eliashberg theory with two distinct superconducting gap energies, 2ΔA≈6kBTc and 2ΔB≈2.2kBTc. The observed unusual suppression of the optical conductivity in the superconducting state at energies up to 14kBTc can be ascribed to spin-fluctuation–assisted processes in the clean limit of the strong-coupling regime.

Published
2011

Catalog

Books, media, physical & digital resources
See catalog results