Anomalous properties and microstructural model of superconductivity in La2−x(Ba,Sr)xCuO4
J. C. Phillips, Karin M. Rabe
DOI 10.1103/PhysRevB.44.2863 · Physical Review B
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Abstract
A specific microstructural model involving short- or long-range order of (Ba,Sr)[La] dopant substituents explains the composition x0=0.125 most favorable for the formation of the low-temperature Ba[La] tetragonal phase. The microstructural model shows that the normal state of these alloys can be described as a two-component Fermi liquid in order to explain the acoustic, magnetic, and thermal anomalies centered on x0 as well as the related drastic reduction in Tc over a narrow range of x.
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. | 38 | Pressure not reported | onset |
| La2-xBaxCuO4 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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