Electronic properties of La2−xSrxCuO4 high-Tc superconductors
B. Batlogg, A. P. Ramirez, R. J. Cava, R. B. van Dover, E. A. Rietman
DOI 10.1103/PhysRevB.35.5340 · Physical Review B
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Abstract
The basic macroscopic properties of the high-Tc superconductors La2−xSrxCuO4 (x=0.075–0.20) with bulk transition temperatures up to 37.5 K were studied. The upper and lower critical fields, specific heat, Meissner effect, and electric resistivity were measured and extreme type-II behavior with large upper-critical-field slopes is observed. The density of states at EF is caLculated from three different sets of experimental quantities (γBCS=6±1.5 mJ/mole? sup 2—). The critical temperatures of (La, Sr)2CuO4 and Ba(Pb,Bi)O3 are ∼3 times higher than those of other superconductors with comparable values of γ, which empirically distinguishes them as a separate class of superconductors.
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. | 37.5 | Pressure not reported | onset |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37.5 | Pressure not reported | onset |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37.5 | Pressure not reported | onset |
| La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 37.5 | Pressure not reported | onset |
| Nb3Ge Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 23 | Pressure not reported | unknown |
| (La,Ba)2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 28 | Pressure not reported | unknown |
| Ba(Pb,Bi)O3 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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