Resonant Andreev Spectroscopy in normal-Metal/thin-Ferromagnet/Superconductor Device: Theory and Application

We develop a theoretical model to describe the transport properties of normal-metal/thin-ferromagnet/superconductor device. We perform experimental test of the model using a gold tip on PdNi/Nb bilayer. The resonant proximity effect causes conductance features very sensitive to the local ferromagnet...

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Detalles Bibliográficos
Autores principales: Romeo, Francesco, Giubileo, Filippo, Citro, Roberta, Di Bartolomeo, Antonio, Attanasio, Carmine, Cirillo, Carla, Polcari, Albino, Romano, Paola
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4667185/
https://www.ncbi.nlm.nih.gov/pubmed/26626046
http://dx.doi.org/10.1038/srep17544
Descripción
Sumario:We develop a theoretical model to describe the transport properties of normal-metal/thin-ferromagnet/superconductor device. We perform experimental test of the model using a gold tip on PdNi/Nb bilayer. The resonant proximity effect causes conductance features very sensitive to the local ferromagnetic properties, enabling accurate measurement of polarization and thickness of the ferromagnet by point contact spectroscopy.

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