Giant longitudinal negative magneto-resistance under perpendicular magnetic field in Bi${}_{2-x}$Fe${}_x$Se${}_{3-x}$S${}_x$ Topological insulators

Rahul Singh, Vinod K. Gangwar, Abhishek Singh +5

The magnetic, magneto-transport and ARPES studies of Fe and S co-doped Bi2Se3 were investigated. With doping concentration magneto-resistance (MR) gradually decreases and for a cer…