Optical study of the charge-density-wave mechanism in 2$H$-TaS${}_2$ and Na${}_x$TaS${}_2$

W. Z. Hu, G. Li, J. Yan +4

We report an optical study of transition metal dichalcogenide 2$H$-TaS${}_2$ and Na intercalated superconductor Na${}_x$TaS${}_2$ over a broad frequency range at various temperatures. A…