Optical conductivity and band gap in the double-Weyl candidate SrSi2 at ambient pressure

L. Z. Maulana, A. A. Tsirlin, E. Uykur +4

We probe the possible double-Weyl state in cubic SrSi2 using optical spectroscopy. The complex optical conductivity was measured in a frequency range from 70 to 22 000 cm-1 at temp…