6533b854fe1ef96bd12aea77
RESEARCH PRODUCT
One and two dimensional tunnel junction arrays in weak Coulomb blockade regime-absolute accuracy in thermometry
J. P. PekolaL. J. TaskinenSh. Farhangfarsubject
PhysicsPhysics and Astronomy (miscellaneous)Condensed Matter - Mesoscale and Nanoscale PhysicsSimple (abstract algebra)Tunnel junctionThermometerAbsolute accuracyMesoscale and Nanoscale Physics (cond-mat.mes-hall)Coulomb blockadeFOS: Physical sciencesCondensed Matter::Mesoscopic Systems and Quantum Hall EffectElectrical impedanceComputational physicsdescription
We have investigated one and two dimensional (1D and 2D) arrays of tunnel junctions in partial Coulomb blockade regime. The absolute accuracy of the Coulomb blockade thermometer is influenced by the external impedance of the array, which is not the same in the different topologies of 1D and 2D arrays. We demonstrate, both by experiment and by theoretical calculations in simple geometries, that the 1D structures are better in this respect. Yet in both 1D and 2D, the influence of the environment can be made arbitrarily small by making the array sufficiently large.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-10-08 |