Josephson Junctions based Suspended Bi2Se3 nanoribbons

As an important member of topological insulator family, Bi2Se3 has Dirac surface states and a 300meV bulk energy gap. Hybrid Bi2Se3/superconductor junctions have the promise of realizing Majorana fermions, and have attracted much interest recently. In our work, we fabricate suspended Bi2Se3 nanoribbon devices with superconducting Al electrodes, and study their transport transport properties. We will present our latest transport data at the meeting.