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Tunnel spectroscopy of a proximity Josephson junction (Articolo in rivista)

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Label

Tunnel spectroscopy of a proximity Josephson junction (Articolo in rivista) (literal)

Anno

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Alternative label

Meschke, M. and Peltonen, J. T. and Pekola, J. P. and Giazotto, F. (2011)
Tunnel spectroscopy of a proximity Josephson junction
in Physical review. B, Condensed matter and materials physics
(literal)

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Meschke, M (Reprint Author), Aalto Univ, Sch Sci, Low Temp Lab, POB 13500, FI-00076 Aalto, Finland. Meschke, M.; Peltonen, J. T.; Pekola, J. P., Aalto Univ, Sch Sci, Low Temp Lab, FI-00076 Aalto, Finland. Giazotto, F., CNR, NEST Ist Nanosci, I-56127 Pisa, Italy. Giazotto, F., Scuola Normale Super Pisa, I-56127 Pisa, Italy. (literal)

Titolo

Abstract

We present tunnel spectroscopy experiments on the proximity effect in lateral superconductor-normal-metal-superconductor Josephson junctions. Our weak link is embedded into a superconducting ring allowing phase biasing of the Josephson junction by an external magnetic field. We explore the temperature and phase dependence of both the induced minigap and the modification of the density of states in the normal metal. Our results agree with a model based on the quasiclassical theory in the diffusive limit. The device presents an advanced version of the superconducting quantum interference proximity transistor, now reaching flux sensitivities of 3 nA/Phi(0), where Phi(0) is the flux quantum. (literal)

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