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Updated: Jan 7, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Two-Dimensional Superconducting Diode Effect in Topological Insulator/Superconductor Heterostructure.

Soma Nagahama1, Yuki Sato2, Minoru Kawamura2

  • 1The University of Tokyo, Department of Applied Physics and Quantum-Phase Electronics Center (QPEC), Tokyo 113-8656, Japan.

Physical Review Letters
|January 2, 2026
PubMed
Summary

We observed the superconducting diode effect (SDE) in a 2D topological insulator/superconductor heterostructure. This breakthrough demonstrates nonreciprocal Cooper-pair motion in 2D systems, driven by vortex dynamics.

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