Proximity-induced superconductivity in Nb/Ag/Fe triple layers
Sürgers, Christoph
1; Stalzer, H. 1; Cosceev, A. 1; Löhneysen, Hilbert von 1
1 Center for Functional Nanostructures (CFN), Karlsruher Institut für Technologie (KIT)
1; Stalzer, H. 1; Cosceev, A. 1; Löhneysen, Hilbert von 11 Center for Functional Nanostructures (CFN), Karlsruher Institut für Technologie (KIT)
Abstract:
In superconducting Nb/Ag double layers, a diamagnetic transition occurs in the magnetization at a temperature Tb below the transition temperature of Nb due to the proximity-induced superconductivity (PIS) in Ag. For triple layers, where Ag is squeezed between Nb and Fe, we. nd that for thick Ag layers with d(Ag) >= 550 nm the diamagnetic screening in Ag is suppressed by the proximity of Fe, as expected. Surprisingly, for small dAg the diamagnetic signal in Ag reappears due to the competing influence of PIS by the superconductor and pair breaking by the ferromagnet. (C) 2006 Elsevier B.V. All rights reserved.
| Zugehörige Institution(en) am KIT | Institut für Festkörperphysik (IFP) Physikalisches Institut (PHI) |
| Publikationstyp | Zeitschriftenaufsatz |
| Publikationsjahr | 2007 |
| Sprache | Englisch |
| Identifikator | ISSN: 0304-8853 KITopen-ID: 1000050512 |
| HGF-Programm | 52.01.01 (POF I, LK 01) Elektr.Eigenschaften.Magnetismus u.SL |
| Erschienen in | Journal of Magnetism and Magnetic Materials |
| Verlag | North-Holland Publishing |
| Band | 310 |
| Heft | 2, Suppl. Part 3 |
| Seiten | e767-e768 |
| Nachgewiesen in | Dimensions Scopus Web of Science |