Superconductivity and the fct-fcc transformation in indium-thallium alloys as a function of pressure
T. F. Smith, T. R. Finlayson
DOI 10.1103/PhysRevB.49.12559 · Physical Review B
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Abstract
The pressure dependence of the superconducting transition temperature (Tc) has been determined up to ∼2.5 GPa for solid-solution In-Tl alloys with compositions between 31.5 and 36.5 at. % Tl. The cusp in Tc as a function of composition, that has been associated with the fcc-fct phase boundary at zero pressure, is found to move to higher thallium concentrations with increasing pressure. This is interpreted as a pressure-induced stabilization of the fct phase resulting from changes in the Fermi surface–Brillouin zone boundary overlap.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| In-Tl Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | midpoint |
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