Topological insulator nanoribbon Josephson junctions: evidence for size effect in transport properties

Gunta Kunakova, Ananthu P. Surendran, Domenico Montemurro +6

We have used Bi${}_2$Se${}_3$ nanoribbons, grown by catalyst-free Physical Vapor Deposition to fabricate high quality Josephson junctions with Al superconducting electrodes. In our dev…