Gated ferroelectric- superconductive quantum system

Ferroelectricity serves as a great solid-state platform for voltage-gated nonvolatile memory devices. On the other hand, superconductors lack electric-field controllability but are in rising use in quantum technologies due to long-range electron correlation. Thus, as opposed to semiconducting transistors that operate by voltage biasing, superconductive quantum devices operate with magnetic fields, which imposes a large device footprint, hindering device miniaturization and scalability. We introduce a hybrid superconducting-ferroelectric system that benefits from both worlds, allowing us to control the superconductive quantum properties through voltage-gated ferroelectric polarization.

Reference:"Nonvolatile voltage-tunable ferroelectric-superconducting quantum interference memory devices", Mohammad Suleiman, Martin F. Sarott, Morgan Trassin, Maria Badarne, and Yachin Ivry, Appl. Phys. Lett. 119, 112601 (2021).