Independent superconductivity and paramagnetism in HoBa2Cu3Oz
J. R. Thompson, D. K. Christen, S. T. Sekula, B. C. Sales, L. A. Boatner
DOI 10.1103/PhysRevB.36.836 · Physical Review B
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Abstract
The magnetic properties of the superconductive materials HoBa2Cu3Oz and YBa2Cu3Oz have been measured and compared. Both had superconductive transition temperatures Tc in low magnetic fields near 90 K and exhibited nearly complete magnetic-flux exclusion. The susceptibility of the Ho-based materials followed a Curie-Weiss law both above and below Tc. These results give clear experimental evidence for a nearly complete decoupling of the magnetic and superconductive layers, demonstrating that the superconductivity is highly anisotropic.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| HoBa2Cu3Oz Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 86.6 | Pressure not reported | midpoint |
| HoBa2Cu3Oz Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | onset |
| HoBa2Cu3Oz Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.5 | Pressure not reported | midpoint |
| HoBa2Cu3Oz Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90.2 | Pressure not reported | zero_resistance |
| YBa2Cu3Oz Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 88 | Pressure not reported | midpoint |
| YBa2Cu3Oz Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91.5 | Pressure not reported | onset |
| La1.85Sro.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 35 | Pressure not reported | unknown |
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