Structure, soft modes, and superconductivity in Cl-doped cadmium sulfide
S. Bilodeau, D. Campbell, R. K. MacCrone, S. J. Nettel
DOI 10.1103/PhysRevB.37.3275 · Physical Review B
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Abstract
Previous measurements on pressure-quenched CdS have revealed anomalous magnetic susceptibility indicative of high-temperature superconductivity, but only over a narrow critical range of chlorine doping. X-ray-diffraction studies as a function of chlorine doping now show that at the critical chlorine doping the material undergoes a phase transition, leaving it as wurzite. Photoacoustic spectroscopy shows that a soft lattice mode appears just beyond critical doping, over the same range as the anomalous magnetism. Lastly, we find by analysis that superparacurrent is induced by a magnetic field in wurzite, providing the lattice mode associated with the wurzite zinc-blende phase transition is very soft.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CdS Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 200 | Pressure not reported | unknown |
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