Optical study of charge dynamics in CaCo<sub>2</sub>As<sub>2</sub>

Optical study of charge dynamics in CaCo₂As₂

Zhang Wei^{1, 2}, Xu Bing², Yang Run², Liu Jin-Yun², Yang Hao^{3, †,}, Qiu Xiang-Gang^{2, ‡,}

The temperature dependence of the fitting parameters for the Narrow Drude term in CaCo₂As₂: (a) the reverse dc conductivity ρ = 1/σ₁(ω → 0) and (b) the scattering rate 1/τ, respectively. The red lines in panels (a) and (b) are the T² fits.