Observation of Maximum Supercurrent Quantization in a Superconducting Quantum Point Contact
- 6 November 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (19), 3533-3536
- https://doi.org/10.1103/PhysRevLett.75.3533
Abstract
We have confirmed the quantization of the critical current in a superconducting quantum point contact consisting of a split-gate superconductor-(two-dimensional electron gas)-superconductor junction. The critical current and conductance show stepwise changes as a function of the gate voltage. We also observed resonant structure resulting from quantum interference of quasiparticles at the step edge.Keywords
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