Microwave study of the high-Tc superconductor La1.8Sr0.2CuO4
M. Poirier, G. Quirion, K. R. Poeppelmeier, J. P. Thiel
DOI 10.1103/PhysRevB.36.3906 · Physical Review B
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Abstract
High-Tc superconductivity is investigated by a microwave-cavity perturbation technique in the compound La1.8Sr0.2CuO4. Both the microwave loss and frequency shift show a rapid decrease at 39 K, the onset of the superconducting transition. A significant microwave absorption is also observed well below the transition. The data are used to determine the sample resistivity in the normal state and characterize the superconducting transition in an applied magnetic field.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.8Sr0.2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 39 | Pressure not reported | onset |
| La1.8Sr0.2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 35.8 | Pressure not reported | midpoint |
| La1.8Sr0.2CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 35.7 | Pressure not reported | midpoint |
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