Collapse of the critical state in superconducting niobium
Ruslan Prozorov, Daniel V. Shantsev, Roman G. Mints
DOI 10.1103/PhysRevB.74.220511 · Physical Review B
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Abstract
Giant abrupt changes in the magnetic-flux distribution in niobium foils were studied by using magneto-optical visualization, thermal, and magnetic measurements. Uniform flux jumps and sometimes almost total catastrophic collapse of the critical state are reported. Results are discussed in terms of thermomagnetic instability mechanism with different development scenarios.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9.2 | Pressure not reported | unknown |
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9.2 | Pressure not reported | unknown |
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