Distinguishing between the flux motion and fluctuations in high-Tc superconductors: A possible test experiment
Zhang Yuheng, Li Xiao-Guang, Chen Lin
DOI 10.1103/PhysRevB.44.12009 · Physical Review B
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Abstract
The behavior of the resistive superconducting transition in an epitaxial YBa2Cu3Oy superconducting film below Tc in pulsed magnetic fields up to 7 T is reported. The transition in the field is not only broadened but also found to be time dependent. The variation of the resistance with the field is clearly irreversible for sufficiently large fields. This test experiment indicates that the transition broadening should be attributed to the flux motion, rather than fluctuations.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 89 | Pressure unresolved | zero_resistance |
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