Muon spin relaxation in Re-substituted HgA2Can−1CunO2n+2+x (A=Sr,Ba; n=2,3) superconductors
L. Fàbrega, A. Calleja, A. Sin, S. Piñol, X. Obradors, J. Fontcuberta, P. J. C. King
DOI 10.1103/PhysRevB.60.7579 · Physical Review B
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Abstract
The muon relaxation rate σ for the Re-substituted HgSr2CaCu2O6+y and HgBa2Ca2Cu3O8+y superconductors has been measured as a function of temperature. The low-temperature values of σ fall close to the universal Uemura line Tc(σ), as observed for other layered superconductors; therefore our data show no evidence of a reduced anisotropy, i.e., interlayer metallization, induced by Re. The in-plane penetration depth values obtained for these 1212 and 1223 compounds are found to be significantly different (λ=1665Å and λ=1310Å, respectively). The roles of the inserted CuO2 planes, the Ba/Sr substitution and the character of the spacing layers are considered to discuss the observed features.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Hg0.82Re0.18Sr2CaCu2O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 107.5 | Pressure not reported | onset |
| Hg0.82Re0.18Sr2CaCu2O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 107.5 | Pressure not reported | unknown |
| Hg0.82Re0.18Ba2Ca2Cu3O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 132.5 | Pressure not reported | onset |
| Hg0.82Re0.18Ba2Ca2Cu3O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 132.5 | Pressure not reported | unknown |
| HgBa2Ca2Cu3O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 134 | Pressure not reported | unknown |
| HgBa2Ca2Cu3O8+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 164 | Pressure not reported | unknown |
| Hg0.75Re0.25Sr2CaCu2O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
| Hg1-xRexBa2CuO4+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | unknown |
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