4 papers
Flux-tunable global and local superconductivity in a topological insulator nano-SQUID
Ella Nikodem, Jakob Schluck, Michał Papaj +5
Topological systems are defined by global properties that enforce the existence of local boundary modes. Three-dimensional topological insulators (TIs) were among the earliest prop…
Tunable superconducting diode effect in a topological nano-SQUID
Ella Nikodem, Jakob Schluck, Max Geier +6
A Josephson diode passes current with zero resistance in one direction but is resistive in the other direction. While such an effect has been observed in several platforms, a large…
Topological Insulator nano-SQUID: Flux-tunable platform for topological superconductivity
Ella Nikodem, Jakob Schluck, Henry F. Legg +5
Many efforts have been made in the past decade to realize topological superconductivity using superconducting proximity effect, but an ideal platform is still lacking. A 3D topolog…
Robust gap closing and reopening in topological-insulator Josephson junctions
Jakob Schluck, Ella Nikodem, Anton Montag +4
In the seminal proposal by Fu and Kane, the superconducting proximity effect is used to realize topological superconductivity in the topological surface state (TSS) of a 3D topolog…