Femtosecond spectroscopy in a nearly optimally doped Fe-based superconductors FeSe0.5Te0.5 and Ba(Fe 1-xCox)2As2/Fe thin film
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Date
2014
Volume
507
Issue
Journal
Series Titel
Book Title
Publisher
Bristol : Institute of Physics Publishing
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Abstract
Femtosecond spectroscopy has been used to investigate the quasi-particle relaxation times in nearly optimally doped Fe-based superconductors FeSe 0.5Te0.5 and optimally doped Ba-122 thin films growth on a Fe buffer layer. Experimental results concerning the temperature dependence of the relaxation time of such pnictides both in the superconducting state are now presented and discussed. Modelling the T-dependence of relaxation times an estimation of both electron-phonon constant and superconducting energy gap in the excitation spectrum of both Fe(Se,Te) and Ba-122 compounds is obtained.
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Keywords
Iron-based Superconductors, Phonons, Relaxation time, Semiconducting selenium compounds, Superconducting materials, Temperature distribution, Thin films, Cobalt, Electron phonon, Excitation spectrum, Femtosecond spectroscopy, Quasi particles, Superconducting energy gap, Superconducting state, Temperature dependence, Thin films growth, Fe-based superconductors, Iron compounds
Citation
Bonavolontà, C., Parlato, L., De, L. C., Valentino, M., Pepe, G. P., Kazumasa, I., et al. (2014). Femtosecond spectroscopy in a nearly optimally doped Fe-based superconductors FeSe0.5Te0.5 and Ba(Fe 1-xCox)2As2/Fe thin film. 507. https://doi.org//10.1088/1742-6596/507/1/012004
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CC BY 3.0 Unported