Quadristor: a novel device for superconducting electronics

TL;DR

This paper introduces the Quadristor, a new four-terminal superconducting device capable of reversible switching between diode and resistive states using minimal control current, based on vortex dynamics.

Contribution

The paper presents the design and experimental validation of the Quadristor, a novel superconducting device with a vortex-based diode mechanism enabling reversible state switching.

Findings

Successfully demonstrated a non-latching superconducting switch

Controlled vortex injection enables state switching

Potential applications in superconducting electronics

Abstract

We designed and experimentally demonstrated a four-terminal superconducting device which can function as a non-latching (reversible) superconducting switch from the diode regime to the resistive state by applying a control current much smaller than the main transport current. The device utilizes a vortex-based superconducting diode mechanism which is switched back and forth via the injection of flux quanta through auxiliary current leads. Various applications in superconducting electronics can be foreseen.