Electron and Phonon Cooling in a Superconductor–Normal-Metal–Superconductor Tunnel Junction
Sukumar Rajauria, P. S. Luo, T. Fournier, F. W. J. Hekking, H. Courtois, B. Pannetier
DOI 10.1103/PhysRevLett.99.047004 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We present evidence for the cooling of normal-metal phonons, in addition to the well-known electron cooling, by electron tunneling in a superconductor–normal-metal–superconductor tunnel junction. The normal-metal electron temperature is extracted by comparing the device current-voltage characteristics to the theoretical prediction. We use a quantitative model for the heat transfer that includes the electron-phonon coupling in the normal metal and the Kapitza resistance between the substrate and the metal. It gives a very good fit to the data and enables us to extract an effective phonon temperature in the normal metal.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Resonant Tunneling through a Macroscopic Charge State in a Superconducting Single Electron Transistor
similarity 0.96D. V. Averin et al.
Source status unknown — claims are unverified
Andreev Current-Induced Dissipation in a Hybrid Superconducting Tunnel Junction
similarity 0.95Sukumar Rajauria et al.
Source status unknown — claims are unverified
“Superconductor-Insulator Transition” in a Single Josephson Junction
similarity 0.95J. S. Penttilä et al.
Source status unknown — claims are unverified
Supercurrent-Induced Temperature Gradient across a Nonequilibrium SNS Josephson Junction
similarity 0.95M. S. Crosser et al.
Source status unknown — claims are unverified
Dissipation-Driven Superconductor-Insulator Transition in a Two-Dimensional Josephson-Junction Array
similarity 0.95A. J. Rimberg et al.
Source status unknown — claims are unverified
Effects of Dissipation on a Superconducting Single Electron Transistor
similarity 0.94J. B. Kycia et al.
Source status unknown — claims are unverified