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Published on: August 2, 2019
Proposed design of a Josephson diode
Jiangping Hu1, Congjun Wu, Xi Dai
1Department of Physics, Purdue University, West Lafayette, Indiana, USA.
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.
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