Lattice instability and superconductivity in the Pb, Sn, and Ba Chevrel phases
J. D. Jorgensen, D. G. Hinks, G. P. Felcher
DOI 10.1103/PhysRevB.35.5365 · Physical Review B
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Abstract
High-resolution neutron powder diffraction measurements show that sintered samples of PbMo6S8, SnMo6S8, and BaMo6S8 all transform from a high-temperature rhombohedral R3¯ structure to a low-temperature triclinic P1¯ structure, but with a broad temperature range over which both phases are present. The temperature of the structural transition, which may be varied with pressure or composition, is empirically correlated with the superconducting transition temperature Tc.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PbMo6S8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 14 | Pressure not reported | onset |
| SnMo6S8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 14 | Pressure not reported | onset |
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