2002/04/30 by M. Giroud, K. Hasselbach, H. Courtois +2 · 12 citations
Materials Science · Physics and Astronomy · #Composite material #Condensed matter physics #Conductor #Electrical conductor #Electrode #Electron #Electron-beam lithography #Electronic and Structural Properties of Oxides #Ferromagnetism #Layer (electronics) #Magnetic and transport properties of perovskites and related materials #Magnetic field #Materials science #Mesoscopic physics #Nanotechnology #Physics #Physics of Superconductivity and Magnetism #Proximity effect (electron beam lithography) #Superconductivity #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1140/epjb/e2003-00014-x
published in The European Physical Journal B 31(1), 103-109 (Springer Science+Business Media) · 7 pages, 6 figures, final version
openalex publication_date 2003/01/01 · arxiv created 2003/02/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present electrical transport experiments performed on submicron hybrid devices made of a ferromagnetic conductor (Co) and a superconducting (Al) electrode. The sample was patterned in order to separate the contributions of the Co conductor and of the Co-Al interface. We observed a strong influence of the Al electrode superconductivity on the resistance of the Co conductor. This effect is large only when the interface is highly transparent. We characterized the dependence of the observed resistance decrease on temperature, bias current and magnetic field. As the differential resistance of the ferromagnet exhibits a non-trivial asymmetry, we claim that the magnetic domain structure plays an important role in the electron transport properties of superconducting / ferromagnetic conductors.