6533b821fe1ef96bd127b622

RESEARCH PRODUCT

Arrays of normal metal tunnel junctions in weak Coulomb blockade regime

Alexander N. KorotkovK. P. HirviJ. P. KauppinenJukka P. PekolaM. A. Paalanen

subject

PhysicsFabricationPhysics and Astronomy (miscellaneous)Condensed matter physicsCoulomb blockadeBiasingCondensed Matter::Mesoscopic Systems and Quantum Hall EffectUniversal relationMagnetic fieldDifferential conductanceMetalCondensed Matter::Superconductivityvisual_artvisual_art.visual_art_mediumQuantum tunnelling

description

Universal features of I–V characteristics of one‐dimensional arrays of normal metal tunnel junctions have been tested against inhomogenities in the junction parameters, number of junctions in the array, and magnetic field. We find that the differential conductance versus bias voltage obeys the analytic form to within 1% if the fabrication errors are smaller than 10% in junction areas, and if the array has more than ten junctions. Furthermore, the universal relation is insensitive to magnetic field at least up to 8 T.

https://doi.org/10.1063/1.115090