Superconducting Proximity Effect at the Paramagnetic-Ferromagnetic Transition
T. Kontos, M. Aprili, J. Lesueur, X. Grison, L. Dumoulin
DOI 10.1103/PhysRevLett.93.137001 · Physical Review Letters
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Abstract
The exchange-enhanced electron-electron interactions at the paramagnetic-ferromagnetic transition were studied experimentally via proximity effect tunneling spectroscopy. By solving the Usadel equations in both the paramagnetic and ferromagnetic states, the electron-spin fluctuation coupling constant and the exchange field are derived from the tunneling spectra.
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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