MANA Reveals Atomic-Scale Rails for Guiding Superconducting Vortices
AI-summarised brief · reviewed before publication
Researchers at Japan’s National Institute for Materials Science discovered that atomic‑scale surface steps on an ultrathin superconductor act as rails guiding superconducting vortices. Scanning tunneling microscopy visualized vortices aligning along these one‑atom‑high steps, and four‑terminal resistance measurements showed vortices moved over 1,000 times faster along the steps than across them at intermediate magnetic fields. The guiding effect is tunable by temperature and magnetic field, offering a new method to control vortex motion and heat flow in low‑power superconducting devices.
💡 Why It Matters
- · Precise vortex steering could reduce energy dissipation in next‑generation quantum circuits, directly impacting the efficiency of superconducting technologies.