Extension of Bean’s model for high-Tc superconductors
G. Ravi Kumar, P. Chaddah
DOI 10.1103/PhysRevB.39.4704 · Physical Review B
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Abstract
High-Tc superconductors have critical current densities Jc that decay sharply with increasing magnetic fields. We solve Bean’s model for Jc decaying exponentially with H and obtain virgin magnetization curves and hysteresis loops. We show that the shape of the hysteresis loop can be altered significantly if the maximum field applied is not large enough, and we explain discrepancies between various magnetization data reported in the literature.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 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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