Effect of the vortex core on the magnetic field in hard superconductors
A. Yaouanc, P. Dalmas de Réotier, E. H. Brandt
DOI 10.1103/PhysRevB.55.11107 · Physical Review B
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Abstract
Using approximate analytical and numerical solutions of the conventional Ginzburg-Landau equations we calculate the small-angle neutron-scattering cross section and the variance of the field distribution as measured by muon-spin rotation for superconductors with large Ginzburg-Landau parameter κ. Our results prove that a proper account of the finite size of the vortex core is important, even at relatively low fields. This finding provides a natural explanation for the recently observed field dependence of the CeRu2 form factor and of the YBa2Cu3O6.95 penetration depth.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CeRu2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O6.95 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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