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Coulomb blockade thermometry using a two-dimensional array of tunnel junctions
Tobias Bergsten, Tord Claeson, Per Delsing
We have measured current-voltage characteristics of two-dimensional arrays of small tunnel junctions at temperatures from 1.5 K to 4.2 K. This corresponds to thermal energies large…
A fast, primary Coulomb blockade thermometer
Tobias Bergsten, Tord Claeson, Per Delsing
We have measured the third derivative of the current-voltage characteristics, d^3I/dV^3, in a two-dimensional array of small tunnel junctions using a lock-in amplifier. We show tha…
Josephson effects in a superconductor-normal metal mesoscopic structure with a dangling superconducting arm
R. Shaikhaidarov, A. F. Volkov, H. Takayanagi +2
We studied a mesoscopic cross-like normal metal structure connected to two superconducting (S) and two normal (N) reservoirs. We observed the Josephson effect under unusual conditi…
First experimental evidence of one-dimensional plasma modes in superconducting thin wires
B. Camarota, F. Parage, F. Balestro +2
We have studied niobium superconducting thin wires deposited onto a SrTiO substrate. By measuring the reflection coefficient of the wires, resonances are observed in the supe…