Substitution for Cu in the electron-doped infinite-layer superconductor Sr0.9La0.1CuO2: Ni reduces Tc much faster than Zn
C. U. Jung, J. Y. Kim, Min-Seok Park, Mun-Seog Kim, Heon-Jung Kim, S. Y. Lee, Sung-Ik Lee
DOI 10.1103/PhysRevB.65.172501 · Physical Review B
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Abstract
We have substituted magnetic Ni and nonmagnetic Zn impurities at Cu sites, in order to probe the nature of the superconductivity for the electron-doped infinite-layer superconductor Sr0.9La0.1CuO2. We found that Tc was nearly constant until 3% replacement by Zn while the superconductivity was nearly suppressed for a 2% substitution by Ni. This behavior is very similar to that of conventional superconductors, but quite different from typical holed-doped cuprate superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr0.9La0.1CuO2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 43 | Pressure not reported | onset |
| Sr0.9La0.1Cu0.98Ni0.02O2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | onset |
| Sr0.9La0.1Cu0.97Zn0.03O2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | onset |
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