Pinning force and peak effect in superconductor/normal-metal multilayers
V. N. Kushnir, S. L. Prischepa, C. Attanasio, L. Maritato
DOI 10.1103/PhysRevB.63.092503 · Physical Review B
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Abstract
We analyzed the temperature, the magnetic field, and the normal layer thickness dependencies of the pinning force Fp in superconductor/normal metal multilayers in the framework of the Ginzburg-Landau (GL) theory. In particular, we studied the temperature dependence of the magnetic field Hp at which are observed both the peak of the critical current density Jc curves versus the external magnetic field H0 and the maximum pinning force Fpmax in the Fp(H0) dependencies. We show that, well below the critical temperature Tc, the magnetic field Hp corresponds to the magnetic field HD of the periodic solution of the GL equations and the HD versus temperature dependence well describes the experimental data.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb/Pd Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.6 | Pressure not reported | unknown |
| Nb/Pd Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4 | Pressure not reported | unknown |
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