Electronic and superconducting properties of Mo-Ta superlattices
L. Maritato, A. M. Cucolo, R. Vaglio, C. Noce, J. L. Makous, Charles M. Falco
DOI 10.1103/PhysRevB.38.12917 · Physical Review B
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Abstract
We obtain bcc-bcc Mo-Ta superlattices in the modulation wavelength range 16–450 Å. The x-ray analysis shows long structural coherence even in the short-modulation-wavelength limit, and the resistivity data are in the metallic regime. We find the ‘‘universal’’ behavior of the Tc versus ρ curve already seen in other metals, compounds, and alloys and, for superlattices in the range 50–250 Å, the dV/dI versus V characteristics show a double-peak structure. The temperature behavior of these peaks is fitted by a two-band model and by a proximity-effect theory.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Mo-Ta Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.2 | Pressure not reported | unknown |
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