Magnetic behavior of superconductor/ferromagnet superlattices
C. Monton, F. de la Cruz, J. Guimpel
DOI 10.1103/PhysRevB.75.064508 · Physical Review B
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Abstract
A study of the electromagnetic response of superconductor/ferromagnet Nb∕Co superlattices is presented. The dc magnetization is measured as a function of Co layer thickness, applied field Ha, and temperature. For very thin Co layers, no ferromagnetism is detected and the observed response is essentially that of a collection of uncoupled Nb layers. When the Co layer is thick enough for ferromagnetism to be established, prior to the field-cooled magnetization measurements, the Co layers are magnetically saturated in the parallel or antiparallel directions to Ha. In this case, the magnetic response of the otherwise uncoupled Nb layers is found to depend on both Ha and the stray fields.
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. | 8.5 | Pressure not reported | unknown |
| YBa2Cu3O7 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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