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Current-voltage characteristics of non equilibrium double-barrier superconducting tunnel junctions

✍ Scribed by T.M. Klapwijk; D.R. Heslinga; M.G. Blamire

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
346 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

An analysis is made of current-voltage Characteristics of superconductor-insulatormetal-insulator-superconductor tunnel structures. The I-V-curves depend strongly on the competition between tunneling through the insulators and inelastic scattering in the metal. It is shown that if the metal is a superconductor with a low critical temperature, superconductivity will be induced above Tc through the transport current. This explains the Observation of the superconducting gap of aluminium at T=4.2 K in recent experiments on Nb/AIOx/AI/AIOx/Nb tunnel junctions.

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