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, ‡,}

Temperature-dependent reflectivity of CaCo₂As₂ in the far infrared region. Inset: 300-K reflectivity over a wide frequency range for CaCo₂As₂ and BaFe₂As₂.