Reappearance of first Shapiro step in narrow topological Josephson junctions

• DOI: 10.1126/sciadv.abf1854
• Publication Date: 2021-06-23T19:16:20Z
• Authors: Daniel Rosenbach; Tobias W. Schmitt; Peter Schüffelgen; Martin P. Stehno; Chuan Li; Michael Schleenvoigt; Abdur R. Jalil; Gregor Mussler; Elmar Neumann; Stefan Trellenkamp; Alexander A. Golubov; Alexander Brinkman; Detlev Grützmacher; Thomas Schäpers
• Keywords: Topological insulator

Confinement in topological insulator nanoribbon Josephson junctions leads to a gapped electron-hole bound state spectrum.