Flux-trapping phenomena in sintered tubes of high-Tc superconductors
Selahattin Çelebi, M. A. R. LeBlanc
DOI 10.1103/PhysRevB.49.16009 · Physical Review B
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Abstract
The remanent magnetic flux density trapped in the cavity and in the wall of sintered tubes of Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O was measured as a function of Hcool, the axial magnetic field present during field cooling and then removed, and of Hcycle, the axial magnetic field impressed and removed after zero-field cooling. For both procedures the two specimens exhibit very different behavior. A simple critical-state model which takes into account the return field of the magnetized grains quantitatively reproduces all of our observations and the corresponding data reported by others.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (Bi0.9Pb0.1)2Sr2Ca2Cu3O Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 77 | Pressure unresolved | unknown |
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 77 | Pressure unresolved | unknown |
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