Superconductivity in thiospinel Cu1.3K0.2Co1.5S4
L. Fang, P. Y. Zou, X. F. Lu, Z. Xu, H. Chen, L. Shan, H. H. Wen
DOI 10.1103/PhysRevB.71.064505 · Physical Review B
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Abstract
We succeeded in substituting slight K for Cu in the parent thiospinel material Cu1.5Co1.5S4. It is found that Cu1.3K0.2Co1.5S4 undergoes a superconducting transition at 4.4K, and no antiferromagnetism was observed around 20K, which was supposed to be one of the characteristics of superconductor Cu1.5Co1.5S4 (Tc∼4.0K). We conclude that the antiferromagnetism of thiospinel Cu1.5Co1.5S4 may stem from tetrahedral A site occupied by Cu atoms and there is no direct relationship between superconductivity and antiferromagnetism.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Cu1.3K0.2Co1.5S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.4 | Pressure not reported | onset |
| Cu1.3K0.2Co1.5S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.54 | Pressure not reported | onset |
| Cu1.3K0.2Co1.5S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.37 | Pressure not reported | zero_resistance |
| Cu1.5Co1.5S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4 | Pressure not reported | onset |
| CuRh2S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.7 | Pressure not reported | unknown |
| CuCo2S4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.4 | Pressure not reported | unknown |
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