Josephson Diode

Details Josephson Diode Josephson Diode

2007-03-16

arxiv.org/abs/cond-mat/0703428v2

Phys Rev Lett, 99, 067004 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages

Scientific paper

We propose a new type of Josephson junction formed by two superconductors close to the superconductor-Mott-insulator transition, one of which is doped with holes and the other is doped with electrons. A self-organized Mott-insulating depletion region is formed at the interface between two superconductors, giving rise to an asymmetric response of current to the external voltage. The collective excitations of the depletion region result in a novel phase dynamics that can be measured experimentally in the noise spectrum of the Josephson current.

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