Optical investigation of topological semimetal SrMnSb<sub>2</sub>

Optical investigation of topological semimetal SrMnSb₂

Qiu Zi-Yang^{1, 2}, Liao Zhi-Yu^{1, 2}, Qiu Xiang-Gang^{1, 2, 3, †}

Reflectivity of SrMnSb₂ below 4000 cm⁻¹ at all measured temperatures. The upper inset denotes the evolution of plasma minima. The bottom inset shows the reflectivity up to 30000 cm⁻¹ at 295 K. The red-dashed curve is the low frequency extrapolation.