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Gate Tunable Supercurrent in Josephson Junctions Based on Bi<sub>2</sub>Te<sub>3</sub> Topological Insulator Thin Films
We report transport measurements on Josephson junctions consisting of Bi2Te3 topological insulator (TI) thin films contacted by superconducting Nb electrodes. For a device with junction length L = 134 nm, the critical supercurrent Ic can be modulated by an electrical gate which tunes the carrier type and density of the …