Superconducting properties of Sn1−xInxTe (x=0.38–0.45) studied using muon-spin spectroscopy
M. Saghir, J. A. T. Barker, G. Balakrishnan, A. D. Hillier, M. R. Lees
DOI 10.1103/PhysRevB.90.064508 · Physical Review B
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Abstract
The superconducting properties of Sn1−xInxTe (x=0.38–0.45) have been studied using magnetization and muon-spin rotation or relaxation (μSR) measurements. These measurements show that the superconducting critical temperature Tc of Sn1−xInxTe increases with increasing x, reaching a maximum at around 4.8 K for x=0.45. Zero-field μSR results indicate that time-reversal symmetry is preserved in this material. Transverse-field muon-spin rotation has been used to study the temperature dependence of the magnetic penetration depth λ(T) in the mixed state. For all the compositions studied, λ(T) can be well described using a single-gap s-wave BCS model. The magnetic penetration depth at zero temperature λ0 ranges from 500 to 580 nm. Both the superconducting gap Δ(0) at 0 K and the gap ratio Δ(0)/kBTc indicate that Sn1−xInxTe (x=0.38–0.45) should be considered as a superconductor with intermediate to strong coupling.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sn1-xInxTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.8 | Pressure not reported | onset |
| Sn0.62In0.38Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.25 | Pressure not reported | onset |
| Sn0.60In0.40Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.69 | Pressure not reported | onset |
| Sn0.58In0.42Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.57 | Pressure not reported | onset |
| Sn0.55In0.45Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.8 | Pressure not reported | onset |
| Sn0.62In0.38Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.08 | Pressure not reported | unknown |
| Sn0.60In0.40Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.5 | Pressure not reported | unknown |
| Sn0.58In0.42Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.2 | Pressure not reported | unknown |
| Sn0.55In0.45Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.3 | Pressure not reported | unknown |
| CuxBi2Se3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Sn1-δTe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.3 | Pressure not reported | unknown |
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