Prediction of decoupling in high-temperature superconductors
Paul P. Durand, Lyle H. Ungar
DOI 10.1103/PhysRevB.41.815 · Physical Review B
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Abstract
The variation of magnetization with field in high-temperature superconductors was calculated by extending the spin-glass model of Ebner and Stroud [C. Ebner and D. Stroud, Phys. Rev. B 31, 165 (1985)] to incorporate domains inside the grains. Two coupling energies were used, one between domains in the same grain, and a field-dependent coupling energy between domains in different grains. The field dependence was assumed to be the same as the field dependence of critical current density. This model reproduces the experimentally observed decoupling of superconductors at low fields.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ 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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