Superfluid density of Ba(Fe1-xMx)(2)As-2 from optical experiments (CROSBI ID 740738)
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Podaci o odgovornosti
Wu, D. ; Barišić, Neven ; Drichko, N. ; Kallina, P. ; Faridian, A. ; Gorshunov, B. ; Dressel, M. ; Li, X. Lin, L.J. ; Cao, G.H. ; Xu, Z.A.
engleski
Superfluid density of Ba(Fe1-xMx)(2)As-2 from optical experiments
The temperature dependence of the ab-plane optical reflectivity of Ba(Fe0.92Co0.08)(2)As-2 and Ba(Fe-0.95 Ni-0.05)(2)As-2 single crystals is measured in a wide spectral range. Upon entering the superconducting regime, the reflectivity in both compounds increases considerably at low-frequency, leading to a clear gap in the optical conductivity below 100 cm(-1). From the analysis of the complex conductivity spectra we obtain the penetration depth lambda(T) = (3500 +/- 350) angstrom for Ba(Fe0.92Co0.08)(2)As-2 and (3000 +/- 300) angstrom for Ba(Fe0.95Ni0.05)(2)As-2. The calculated superfluid density rho(s) of both compounds nicely fits Homes' scaling relation rho(s) = (125 +/- 25)sigma T-dc(c)
Ba(Fe1-xMx)(2)As-2
Rad je prezentiran na skupu 9th International Conference on Materials and Mechanisms of Superconductivity.
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Podaci o prilogu
S399-S400.
2010.
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objavljeno
10.1016/j.physc.2009.10.142
Podaci o matičnoj publikaciji
Physica. C, Superconductivity
0921-4534
Podaci o skupu
Nepoznat skup
ostalo
29.02.1904-29.02.2096