Quantum Hall effect on top and bottom surface states of topological insulator (Bi1−xSbx)2Te3 films (Quantum Hall effect on top and bottom surface states of topological insulator (Bi1-xSbx)(2)Te-3 films)
R. Yoshimi, A. Tsukazaki, Y. Kozuka, J. Falson, K.S. Takahashi, J.G. Checkelsky, N. Nagaosa, M. Kawasaki, Y. Tokura.