Quasiparticle Interference Effects in a Ballistic Superconductor-Semiconductor-Superconductor Josephson Junction
G. Bastian, E. O. Göbel, A. B. Zorin, H. Schulze, J. Niemeyer, T. Weimann, M. R. Bennett, K. E. Singer
DOI 10.1103/PhysRevLett.81.1686 · Physical Review Letters
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Abstract
We have studied transport properties in a superconductor-semiconductor-superconductor junction formed by two superconducting Nb electrodes and a two-dimensional electron gas in an InAs/AlSb heterostructure in the ballistic regime on the basis of I−V measurements. We observe sharp spikes in the differential resistance at temperatures below 2.5 K which can be explained by quasiparticle interference effects, which are related to Andreev bound states.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8.7 | Pressure not reported | unknown |
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