Temperature dependence of the low-field magnetization of granular superconductors
M. Ambrico, R. De Luca, S. Pace, M. Polichetti
DOI 10.1103/PhysRevB.54.4232 · Physical Review B
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Abstract
Calculations of low-field magnetization curves of superconducting granular systems are carried out by means of a critical-state model that follows from the Josephson-junction network description of this class of superconductors. An approximate analytical expression of the temperature-dependent effective critical current density Jc is derived. General critical-state calculations which explicitly take account of temperature effects are thus specified to the case of a cylindrically symmetric polycrystalline superconducting sample. The calculated low-field magnetic properties are seen to be in good agreement with experimental results. © 1996 The American Physical Society.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-x 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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