Surface Shubnikov-de Hass oscillations and non-zero Berry phases of the topological hole conduction in Tl${}_{1-x}$Bi${}_{1+x}$Se${}_2$

G. Eguchi, K. Kuroda, K. Shirai +2

We report the observation of two-dimensional Shubnikov-de Hass (SdH) oscillations in the topological insulator Tl${}_{1-x}$Bi${}_{1+x}$Se${}_2$. Hall effect measurements exhibited electr…