Suppression of vortex pinning by field component parallel to the superconducting plane in Bi2Sr2CaCu2O8
S. Nakaharai, T. Ishiguro, S. Watauchi, J. Shimoyama, K. Kishio
DOI 10.1103/PhysRevB.61.3270 · Physical Review B
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Abstract
The response of magnetic fluxoids nearly parallel to the superconducting plane of the layered superconductor Bi2Sr2CaCu2O8 has been investigated through the ac susceptibility measurement. The fluxoids respond diamagnetically due to pinning when they pierce the superconducting plane to form pancake vortices, but they are released due to melting and become mobile in the high field. The liberation is enhanced by approaching the parallel field direction by the effect of decoupling between planes and finally the vortex pinning is suppressed. The pinning of fluxoids with pancakes and releasing in relation to their lock-in state are presented.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 88 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 77 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 76 | Pressure not reported | unknown |
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