Published in:
Physical Review Letters 99,6 (2007)
Link to original published article:
http://dx.doi.org/10.1103/PhysRevLett.99.067004
Abstract
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.
Keywords
Physics, Multidisciplinary
Date of this Version
January 2007