Figure 9 | Scientific Reports

Figure 9

From: Temperature dependence of the superconducting energy gaps in Ca9.35La0.65(Pt3As8)(Fe2As2)5 single crystal

Figure 9

The temperature dependence of the penetration depth \({\lambda }_{exp}\) evaluated from eq. (3) using the data shown in Fig. 3(b) and the penetration depth \({\lambda }_{{\rm{\Delta }}1}\) evaluated from the missing area between the optical conductivity (dash-dotted blue lines in Fig. 4) calculated using the gap energy Δ1 and the optical conductivity calculated from the Drude response (solid green line in Fig. 2) using the larger plasma frequency \({\omega }_{P2}\) at 30 K in the (Ca0.935La0.065)10(Pt3As8)(Fe2As2)5 sample. The inset shows the total superfluid density and the superfluid density due to the smaller gap. The blue solid line is a line fit to a phenomenological equation, \({\rm{\lambda }}={\lambda }_{0}/[1-{(T/{T}_{c})}^{4}]\).

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