Giant suppression of superconductivity at x=0.21 in the Zn-substituted La2−xSrxCu1−yZnyO4 single crystals
T. Kawamata, T. Adachi, T. Noji, Y. Koike
DOI 10.1103/PhysRevB.62.R11981 · Physical Review B
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Abstract
We have found a little suppression of superconductivity at x=0.21 in La2−xSrxCuO4 single crystals and, moreover, a giant suppression of superconductivity at x=0.21 through the 1% substitution of Zn for Cu. In the Zn-substituted La2−xSrxCu1−yZnyO4 single crystal with x=0.21 and y=0.01, the resistivity exhibits an upturn at low temperatures below ∼80 K. These results suggest that the dynamical stripe correlations of spins and holes are pinned by a small amount of Zn at x=0.21, leading to a static stripe order and the giant suppression of superconductivity, as in the case of x=0.115.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La2-xSrxCu1-yZnyO4 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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