Ambipolar magneto-optical response of ultra-low carrier density topological insulators

Dipanjan Chaudhuri, Maryam Salehi, Sayak Dasgupta +5

We have investigated the THz range magneto-optical response of ultralow carrier density films of Sb${}_2$Te${}_3$ using time-domain THz polarimetry. Undoped Sb${}_2$Te${}_3$ has a chemical…