Superconducting properties of the In-substituted topological crystalline insulator SnTe
G. Balakrishnan, L. Bawden, S. Cavendish, M. R. Lees
DOI 10.1103/PhysRevB.87.140507 · Physical Review B
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Abstract
We report detailed investigations of the properties of a superconductor obtained by substituting In at the Sn site in the topological crystalline insulator (TCI), SnTe. Transport, magnetization, and heat capacity measurements have been performed on crystals of Sn0.6In0.4Te, which is shown to be a bulk superconductor with Tconset at ∼4.70(5) K and Tczero at ∼3.50(5) K. The upper and lower critical fields are estimated to be μ0Hc2(0)=1.42(3) T and μ0Hc1(0)=0.90(3) mT, respectively, while κ=56.4(8) indicates this material is a strongly type-II superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sn0.6In0.4Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.7 | Pressure not reported | onset |
| Sn0.6In0.4Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.5 | Pressure not reported | zero_resistance |
| Sn0.6In0.4Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.75 | Pressure not reported | onset |
| SnTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.3 | Pressure not reported | unknown |
| Sn0.988-xInxTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2 | Pressure not reported | unknown |
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