Magnetic ordering in the high-temperature superconductor ErBa2Cu3O7−δ
D. McK. Paul, H. A. Mook, L. A. Boatner, B. C. Sales, J. O. Ramey, L. Cussen
DOI 10.1103/PhysRevB.39.4291 · Physical Review B
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Abstract
Neutron diffraction has been used to reexamine the magnetic ordering in the high-temperature superconductor, ErBa2Cu3O7−δ. A composite sample of five single crystals has been used for this investigation. The anomaly in the specific heat at 0.55 K is found to correspond to the formation of a three-dimensional, antiferromagnetic long-range-ordered state. This finding is in disagreement with an earlier measurement by Lynn et al., [Phys. Rev. B 36, 2374 (1987)] which suggested a two-dimensional magnetic structure.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| ErBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 88 | Pressure not reported | midpoint |
| ErBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 89.5 | Pressure not reported | onset |
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure not reported | unknown |
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