  This study examines the magnetotransport response observed in flakes of the
3D topological insulator (TI) Bi2Te3, including indium superconducting
electrodes, and demonstrates two critical transitions in the magnetoresistive
response with decreasing temperatures below T = 3.4K. The first transition is
attributed to superconductivity in the indium electrodes, and the second
transition, with a critical field exceeding the transition field of indium, is
attributed to a proximity effect at the 2D planar interface of this hybrid
TI/superconductor structure.
