Electrodynamics of Metallic Superconductors

Figure 9

Temperature dependence of the (a) real and (b) imaginary parts of the conductivity of aluminum normalized to the normal state conductivity 𝜎_𝑛 for selected frequencies. The solid lines are calculated by the BCS theory using ℓ/(𝜋𝜉)=0.03 [28].

(a)

(b)