Magnetic penetration depth in the Chevrel-phase superconductors SnMo6S8−xSex and PbMo6S8−xSex
P. Birrer, F. N. Gygax, B. Hitti, E. Lippelt, A. Schenck, M. Weber, D. Cattani, J. Cors, M. Decroux, O/. Fischer
DOI 10.1103/PhysRevB.48.16589 · Physical Review B
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Abstract
A full account of positive-muon spin-rotation (μ+SR) studies on the systematics of the magnetic penetration depth λ in the isotropic Chevrel-phase superconductors SnMo6S8−xSex (x=0,1,4,7) and PbMo6S8−xSex (x=0,4) is presented. The absolute determination of λ from the μSR data necessitates a careful analysis of the μSR line shape and a comparison with simulated data, taking into account distortions of the flux-line lattice and a distribution of demagnetization factors in the sintered granular polycrystalline probes investigated. A correlation between Tc and 1/λ2 is found which supports a recently developed quantum percolation model.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| SnMo6S8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| SnMo6S7Se Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| SnMo6S4Se4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| SnMo6SSe7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| PbMo6S8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| PbMo6S4Se4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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