Anisotropy of resistivity in Tl-based single crystals: Direct evidence for the influence of the blocking-layer thickness and correlation with superconducting properties
V. Hardy, A. Maignan, C. Martin, F. Warmont, J. Provost
DOI 10.1103/PhysRevB.56.130 · Physical Review B
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Abstract
The in- and out-of-plane resistivities ρab and ρc have been measured on single crystals of Tl2Ba2CaCu2O8 (Tl-2212) and Tl2/3Bi1/3Sr2CaCu2O7 [(Tl, Bi)-1212]. The ρc values were found to be much lower in the Tl monolayer [(Tl, Bi)-1212] than in the Tl bilayer (Tl-2212). These measurements allowed us to test quantitatively the predictions of the model proposed by Kim et al. [Physica C 177, 431 (1991)] about the influence of the thickness of the blocking layers on ρc, as well as the effect on the location of the irreversibility line.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Tl2Ba2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 110 | Pressure not reported | midpoint |
| Tl2/3Bi1/3Sr2CaCu2O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 88 | Pressure not reported | midpoint |
| HgBa2Ca2Cu3O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.85Sr0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 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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