CRETINON, L.; GUPTA, A. K.; SELLIER, H.; LEFLOCH, F.; FAURE, M.; BUZDIN, Alexandre I.; COURTOIS, Hervé

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CRETINON, L.
Centre de Recherches sur les Très Basses Températures [CRTBT]

GUPTA, A. K.
Centre de Recherches sur les Très Basses Températures [CRTBT]

SELLIER, H.
Département de Recherche Fondamentale sur la Matière Condensée [DRFMC]
Physics of NanoElectronics [TUDELFT / NANOSCIENCE]
Kavli Institute of Nanosciences [Delft] [KI-NANO]

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Ce document a été publié dans

Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2005, vol. 72, n° 2, p. 024511 (1-6)

American Physical Society

Résumé en anglais

We studied the proximity effect between a superconductor (Nb) and a diluted ferromagnetic alloy (CuNi) in a bilayer geometry. We measured the local density of states on top of the ferromagnetic layer, which thickness varies on each sample, with a very low temperature Scanning Tunneling Microscope. The measured spectra display a very high homogeneity. The analysis of the experimental data shows the need to take into account an additional scattering mechanism. By including in the Usadel equations the effect of the spin relaxation in the ferromagnetic alloy, we obtain a good description of the experimental data.< Réduire

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Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798