Details

Autor(en) / Beteiligte

• Sürgers, C.
• Stalzer, H.
• Cosceev, A.
• Löhneysen, H.v.

Titel

Proximity-induced superconductivity in Nb/Ag/Fe triple layers

Ist Teil von

• Journal of magnetism and magnetic materials, 2007-03, Vol.310 (2), p.e767-e768

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2007

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In superconducting Nb/Ag double layers, a diamagnetic transition occurs in the magnetization at a temperature T b 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 find 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 d Ag the diamagnetic signal in Ag reappears due to the competing influence of PIS by the superconductor and pair breaking by the ferromagnet.